Wireless amplifier with microphone

WIP-DB100 * Wireless Battery Powered Smart Doorbell Camera * Low power consumption, 6~8 Month's endurence with 2 units of 18650 battery * HD 720P Image Quality, support night vision, camera view angle covers 166° * PIR motion sensor with 120° detection angle, accurate motion detection * Support WiFi, Free P2P cloud service, push alarm to mobile via APP. * Support 2-way Audio Communication, answer your door whereever you are. Sensor 1/4 CMOS OV9732 ISP Hisilicon Hi3518E Resolution 1 Mega-Pixels Frame rate 25fps Resolution 1280×720px Lens 166° wide-angle Night vision 6pcs Infra-Red LED Lights, IR Range: 6M Audio Type 2-way audio with noise-cancellation Hardware One Microphone and one speaker Network WiFi (2.4GHz) IEEE 802.11 b/g/n App Download iOS in App Store, Android in Google Play Name ToSee Device Wakeup Within 600ms Notification Push notification within 1 second Others Power Battery or Hardwire Power Supply(8-24 VAC) Battery 2 × Standard 18650 battery Power Consumption Standby mode: 200uA Working mode: 170mA Temperature -20~55 °C Humidity 10-95% RH Size 75 x 40 x 143mm (L×W×H) Weight N.W: 300g G.W.: 600g (Note: for real products)

The product is new, has only been opened and tested and is fully functional. Il prodotto è nuovo, è stato solamente aperto e provato ed è perfettamente funzionante. DUAL CHANNEL UHF WIRELESS BELT-PACK MICROPHONE SYSTEM EIKONâ€â„¢s WM101 V2 series is a complete range of single or dual channel wireless products with handheld transmitters or bodypack transmitters with headset microphone.This line of products offers a particularly interesting value for money, thanks to the quality capsule of the transmitters and the Digital Encrypting system with 3 available channels.Single-channel systems include a rugged ABS housing while dual-channel systems include a solid metal chassis. Fixed dual frequency wireless microphone system Encrypted Digital Audio 863 â€â€œ 865 Mhz frequency range 30 meter/ 100 feet range 50 Hz -15 KHz frequency response Condenser headset with cardioid capsule Low-profile metal desktop receiver with two foldable antennas TECHNICAL SPECIFICATIONS RECEIVER Receiver Type. UHF Band Frequency Range: 863-865 MHz RF Frequency Stability: ±0.002 % RF Image/Spurious Rej.: > 70 dB RF Interference Reject.: > 70 dB RF Sensibility: -105 dBm Frequency Response: 50 – 15000 Hz Modulation Method: PCM Digital 24 bit THD Distortion: 90 dB S/N Ratio >: 100 dB Power Requirement: 12 V DC / 500 mA Output Connector: Unbalanced ¼ “ jack Dimensions (mm): H 45 x L 150 x W 118 BELT-PACK TRANSMITTER Carrier Frequency Range: UHF: 863-865 MHz Modulation method: FM (F3E) Transmitting Power:

WIP-DB100 * Wireless Battery Powered Smart Doorbell Camera * Low power consumption, 6~8 Month's endurence with 2 units of 18650 battery * HD 720P Image Quality, support night vision, camera view angle covers 166° * PIR motion sensor with 120° detection angle, accurate motion detection * Support WiFi, Free P2P cloud service, push alarm to mobile via APP. * Support 2-way Audio Communication, answer your door whereever you are. Sensor 1/4 CMOS OV9732 ISP Hisilicon Hi3518E Resolution 1 Mega-Pixels Frame rate 25fps Resolution 1280Ã--720px Lens 166° wide-angle Night vision 6pcs Infra-Red LED Lights, IR Range: 6M Audio Type 2-way audio with noise-cancellation Hardware One Microphone and one speaker Network WiFi (2.4GHz) IEEE 802.11 b/g/n App Download iOS in App Store, Android in Google Play Name ToSee Device Wakeup Within 600ms Notification Push notification within 1 second Others Power Battery or Hardwire Power Supply(8-24 VAC) Battery 2 Ã-- Standard 18650 battery Power Consumption Standby mode: 200uA Working mode: 170mA Temperature -20~55 °C Humidity 10-95% RH Size 75 x 40 x 143mm (LÃ--WÃ--H) Weight N.W: 300g G.W.: 600g (Note: for real products)

Featuring a secure fit and a sweat/weather-resistant construction the Sport Pace by Jabra is a pair of wireless in-ear headphones designed with the sports enthusiast in mind. These earbuds boast a 5 hour operating time and a wireless range of 33 feet and they charge quite quickly to boot: 15 minutes of plug-in will get you 60 minutes of battery life. his pair also features three sets of ear gels for a snug fit. Using the on-board microphone and controls you have the ability to dial calls by voice redial answer and end calls and pause your music as well.

Description 1. Brand new and high quality 2. LED touch button with LED touch screen, easy to use 3. NFC function and wireless supported at any moment 4. Built-in microphone, support hands-free calls 5. Fashionable appearance, pleased to your eyes 6. Supports AUX in, FM and up to 32GB TF card (not included) Bluetooth VersionV3.0DesignPortableSupportsHandsfreeBluetoothMicrophoneTF Card Music PlayingPackage Contents1 x Speaker1 x USB cable1 x User Manual1 x Audio CableFunctionsAUX FunctionNFCFM RadioConnectionBluetoothMaterialPlasticInterface3.5mm AudioTF Card SlotUSBFrequency Response40Hz-20KHzCharging VoltageDC 5VSNR>= 85dBBattery TypesLi-ion batteryBattery Capacity800mAhAmplifier Power3W x 2Size23*6.5*6.5cmWeight400g

Registratore SPY Stereo - Player Mp3 e Radio Fm - DENPA VT - 50 come nuovo RARO E PROFESSIONALE.... Vendo registratore e riproduttore audio stereo Mp3 DENPA VT - 50 La registrazione e la riproduzione stereo supportano i formati di file MP3 e WMA Registrazione stereo digitale IC con microfono stereo a4 selezioni di sensibilità per una qualità del suono cristallina Funzione VOR Dimensioni tascabili per registrazioni discrete Compatibile con microfono wireless Condizione come nuovo usato pochissimo nessun graffio o danneggiamento presente. Funzione compresa nel voice recorder il player audio con microfono in via voce. Presenti 5 equalizzatori: Normal, Jazz, Rock, POP e Opti selezionabili in modalità MP3 Molto rara presente anche la funzione Radio FM Radio FM stereo (87 ~ 108 MHz). Attacco audio per cuffie e microfono. Abilitazione USB diretta per la connessione con il PC, non è necessario trasportare il cavo. Batteria con pile stilo 1,5V Non disponibile la scatola originale. Manuale istruzioni (29 pag.) in lingua originale (inglese) in formato PDF. (funzioni molto intuitive da menu display). DC 1,5 V ANSI AAA Memoria 2Gb (oltre 500 ore di registrazione audio) Consente di memorizzare qualsiasi tipo di file non solo file vocali utilizzando il Voice Recorder come hard disk esterno Denpa VT-50 è il TOP per chi pretende il massimo. Prodotto rarissimo in Amazoon è terminato. Potete vedere due video di presentaizone ai seguenti link: https://www.youtube.com/watch?v=9MSHDITF-lg https://www.youtube.com/watch?v=FRBdCtkDIts Prezzo 150 euro trattabile per info contattatemi.. Spedisco in tutta Italia con costo extra non compreso nel prezzo. INGLESE SPY Recorder - stereo audio - Mp3 Player and Fm Radio Player - DENPA VT - 50 as new RARE AND PROFESSIONAL.....For sale DENPA VT - 50 Mp3 stereo audio recorder and player Stereo recording and playback support MP3 and WMA file formats Digital stereo recording IC with stereo microphone a4 sensitivity selections for crystal clear sound quality VOR function Pocket size for discreet recordings Compatible with wireless microphone Condition like new, used very little, no scratches or damage present. Function included in the voice recorder is the audio player with microphone in via voice. There are 5 equalizers: Normal, Jazz, Rock, POP and Opti selectable in MP3 mode Also very rare is the FM radio FM stereo radio function (87 ~ 108 MHz). Audio connection for headphones and microphone. Direct USB enable for PC connection, no need to carry the cable. Battery with 1.5V AAA batteries The original box is not available. Instruction manual (29 pages) in original language (English) in PDF format. (very intuitive functions from the display menu). DC 1.5V ANSI AAA 2Gb memory (over 500 hours of audio recording) It allows you to store any type of file not just voice files utilizzando il Voice Recorder come hard disk esterno Price 150 euro negotiable for info contact me.. I ship all over Italy with extra cost not included in the price. You can see two presentation videos at the following links: https://www.youtube.com/watch?v=9MSHDITF-lg https://www.youtube.com/watch?v=FRBdCtkDIts Denpa VT-50 is the TOP for those who demand the best. Extremely rare product in Amazoon is finished. For any information call me. Andrea Tura M 329 2771833

Vendo sistema di casse Wharfedale DIAMOND 10 per Home Cinema. Nel dettaglio sono questi 6 diffusori: 4 x DIAMOND 10.4 diffusori pavimento 2 vie, bass reflex, 2 woofer 13cm, 120W 1 x DIAMOND 10.CC diffusore centrale 2 vie 2 woofer 20cm, 120W 1 x DIAMOND 10.SX-SUB subwoofer potenza RMS 100W regalo Panasonic SA BX-500 amplificatore home theatre 7.1 canali (130 Watt per canale), AM/FM Receiver, High quality Amplifier, Auto Speaker Setup, Wireless ready with optional Second room speaker SA-FX85, Energy Star Qualified, Blu-ray Compatible; 4 HDMI (3 IN, 1 Out) attualmente il sistema è imballato nel cellophane. Per altre informazioni o immagini non esitate a contattarmi. Solo consegna a mano a Saronno. Qualsiasi prova. Massimo

Vendo ampli combo Fender Acoustasonic 15 per inutilizzo, mai usato dal vivo ed in perfette condizioni. Consegna a mano. Per maggiori informazioni non esitate a contattarmi. Fender Acoustasonic è un amplificatore combo per chitarre acustiche, folk, elettriche e anche per voce con potenza di 15 watt. Trasportabile, semplice e piuttosto flessibile per vari generi musicali e per performance live con pubblico ridotto, si può utilizzare anche con voce e strumento contemporaneamente. Series: Acoustasonicâ,,¢ Color: N/A Amplifier Type: Solid State Voltage: 120V Wattage: 15 Watts Inputs: Two - (One 1/4" and One XLR) Headphone Jack: 1/4" Channels: Two - (Instrument and Microphone) Controls: Instrument Channel: Volume, Bass, Middle, Treble, Chorus. Microphone Channel: Volume, Bass, Middle, Treble. Grill Cover: Brown Textured Vinyl Covering with Black Grille Cloth Amplifier Depth: 18.1 cm Amplifier Width: 28.4 cm Amplifier Height: 29.2 cm Amplifier Weight: 4.76 kg Effects: Chorus (Instrument Channel) Speaker Description: 6 inch Special Design full-range speaker with whizzer cone for enhanced high-frequency response. Speaker: One - 6" Fender® Special Design Unique Features: Features Include: 15 Watts of output power, 6 inch Special Design full-range speaker with whizzer cone for enhanced high-frequency response, two channels (XLR microphone and 1/4 " instrument) with individual volume controls, Chorus effect (for instrument channel) with level control and on/off switch, Bass, Middle, and Treble tone controls, 1/4 " headphone output, Classic Fender cosmetic treatment with brown textured vinyl covering and chrome hardware for durability and great looks, 5-year transferable warranty (US and Canada, other territories may vary). Knobs: Vintage-Style Black Radio.

Audio-technica ATH-SR5BT WHITE Le cuffie wireless ATH-SR5BT On Ear offrono un fenomenale Hi-Res Audio con la comodità dell'interfaccia wireless Bluetooth®. Fino a otto dispositivi (smartphone, tablet, lettori musicali, ecc.) possono essere memorizzati nella memoria del ATH-SR5BT per una connessione rapida ai dispositivi scelti. L'aggiunta o la sostituzione dei dispositivi è resa ancora più semplice grazie alla funzionalità NFC (Near Field Communication) delle cuffie: toccare qualsiasi dispositivo NFC compatibile con tecnologia wireless Bluetooth sul N-Mark sulle cuffie e il dispositivo e le cuffie sono automaticamente associate e collegate. Le cuffie ATH-SR5BT On Ear sono dotate di potenti driver da 45 mm e sono dotati di un microfono e di un commutatore di volume / comando integrato nella porta auricolare sinistra, che consente di rispondere alle chiamate, regolare il volume e gestire la riproduzione (riproduzione, pausa, avanzamento rapido, Inverso, successiva / precedente) di musica e video su smartphone compatibili e altri dispositivi portatili. Un cavo di smartphone da 1,2 m (3,9 ') con microfono e comandi è inoltre incluso per fornire una connessione cablata standard in aree in cui è vietata l'uso della tecnologia wireless Bluetooth, quando la batteria è scarica o quando Hi-Res Audio (da 5 a 40.000 Hz) è desiderata. La batteria interna al polimero al litio fornisce 38 ore di utilizzo continuo (fino a 1000 ore in modalità standby) e può essere ricaricata utilizzando il cavo di ricarica USB da 1,0 m (3,3 '). Caratteristiche Type Closed-back Dynamic Driver Diameter 45 mm Frequency Response 5-40,000 Hz Maximum Input Power 1,500 mW (for wired connection) Sensitivity 103 dB/mW Impedance 45 ohms Battery DC 3.7V lithium polymer battery Battery Life 38 hours continuous use (1000 hours standby) Charging Time: Approx. 4 hours (for 0-100% charge) Weight 185 g (6.5 oz), without cable Cable Detachable 1.2 m (3.9') with in-line control/microphone Connector 3.5 mm (1/8 ") stereo mini-plug, L-shaped Accessories Included 1.0 m (3.3') USB charging cable, pouch Type (Microphone) Condenser Sensitivity (Microphone) -40 dB (1V/Pa at 1 kHz) Frequency Response (Microphone) 50 - 4,000 Hz Polar Pattern (Microphone) Omnidirectional Communication System: Bluetooth Version 4.1 Output: Bluetooth Specification Power Class 2 Maximum Communication Range: Line of sight - approx. 10 m (33') Compatible Bluetooth Profiles: A2DP, AVRCP, HFP, HSP Support Codec: SBC, aptX, AAC

Garanzia 3 anni In stock spedizione assicurata in tutta italia punto assistenza in italia per il periodo di garanzia anthem mrx720 - a high powered and highly specified a/v receiver from anthem continuing a line of highly respected machines. equipped with dolby atmos moving up the line, the mrx 720 includes 7 channels of amplification, which is suitable for driving 7.1, 5.1.2, and 5.1 plus zone 2 speaker systems. with external amplification for height speakers the main pre-outs can be used for 7.1.4-channel systems. the input complement is similar to that of the mrx 520, adding a front hdmi input which also supports mhl. other standout features include dolby atmos and dts:x immersive audio decoding (dts:x via a future software update). dts play-fi wireless multiroom-audio technology is also built in. users can also enjoy the wireless network connection to run the award-winning anthem room correction system, making setup more convenient than ever before. 11.2 pre-amp / 7 amplifier channel a/v receiver with dolby atmos and dts:x. 140 watts per channel continuous power into 8 ohms. includes arc (anthem room correction). 11.2 pre-amplifier & 7 amplifier channels dolby atmos® dts:x(TM) arc(TM) anthem room correction 4 speaker profile memories quad core digital signal processing two sub out jacks (parallel) premium 32-bit / 768 khz differential-output d/a converters wireless network connection dts play-fi® - local and streaming hdmi & video hdmi 2.0a hdcp 2.2 4:4:4 subsampling at 4k60 (18.2 gbps) high dynamic range (hdr) bt.2020 color gamut on-screen display with 4k 50/60 4k 50/60 switching contatti: skype:dsdhomecinema or what 0041789105968 advanced load monitoring (alm) fm tuner low standby mode power consumption remote control app for ios (apple) and android (coming soon!) decoding dolby truehd dts-hd master audio listening modes anthemlogic - (11.2 channels with mrx 1120 and 720, 5.2 channels with mrx 520) dolby surround dolby pro logic ii on mrx 520 dts neo:6 - cinema, music all-channels - all-speaker stereo inputs 8 hdmi inputs (7 rear and 1 front-panel input on mrx 1120 and mrx 720, 7 rear inputs on mrx 520) digital audio inputs: 2 coaxial + 3 optical 5 stereo analog rca inputs hdmi on-screen display - setup, video adjustments, status, song/artist info from radio stations mhl supported inputs xvycc, adobe rgb, adobe ycc601, sycc601, deep color 2 parallel outputs consumer electronic control (cec) audio return channel standby pass-through custom installation ip control rs-232 control ir input (configurable) 12v trigger output control system drivers additional features backlit remote control sidemount rack kit (sold separately) warranty 3 years (us/canada) sconto extra per acqusto sony-jvc videoproiettori oppo lettori blueray no permuta

Marchio: Audiophony Categoria: Casse Attive con Mixer Integrato 2 channels XLR3-F/TRS combo Line/Mic input 1 Stereo RCA channel 1 1/8" AUX channel 1 Bluetooth connexion 2 UHF microphones Outputs: 1 TRS mix output Loudspeaker: 12" loudspeaker + 1.35" titanium driver, total impedance: 4Ω Power: 150 W RMS/DC 250 W RMS/AC Class D amplifier Response curve: 55 Hz- 20 kHz Sound pressure level: 118 dBSPL max UHF DiversityWith 16 frequencies Handheld cardioid-dynamic microphone Frequency range UHF 514 ~ 542 MHz - 10 mW Built-in USB key / SD card reader and Bluetooth receiver SuppliedWith an infrared remote control The player features a Bluetooth receiver TypeV2.0 AVRCP,With an excellent, close-to-digital audio transmission Independent level settings for each channel Low and treble equalizer from -12 dB to + 12dB Echo and Delay effects on the microphone channels Power and Limit Indicator Battery charge indicators Finish: Polypropylene housing, metal mesh grill. C36 mounting plate for speaker stands Dimensions (mm): 615 x 350 x 395 NetWeight (incl. batteries): 24.5 kg Batteries: 2x 18V / 7Ah Lead Acid Autonomy: 6 hours depending on theVolume Charging time: 8 hours to recharge the two 18V batteries LED display to indicate the charge level. Charge it and use it at the same time. Automatic shutdown if the battery level is too low.

Apexis ip camera APM-H803-WS for wholesale Apexis ip camera APM-H803-WS IP Network Camera for sale Contact information: Shenzhen Apexis Electronic Co.,Ltd Address: 12th floor West Keji Building,ShenZhen High-Tech Ind-Park,Nanshan District.ShenZhen,China Phone: +86-755-26509025 Fax: +86-755-26509229 Website: http://www.apexis.com.cn http://www.apexis.cc E-mail: apexisdesigner4@hotmail.com zip:518057 APM-H803-WS IP Network Camera,Network IP Camera New Feature: > Support IR-Cut > Support Gmail/Hotmail function > 9 preset positions monitoring > Free DDNS for Remote viewing > Freely control alarm sound ON/OFF > Freely control alarm record ON/OFF Basic Feature: > H.264 video compression format > SD2.0 standard, maximum storage 32G > Built-in Microphone and Speaker > Support two-way audio function > Freely control upload image to FTP > Freely control Pan/Tilt angle by software > Freely control Pan/Tilt speed by software > Freely control network indicator LED on/off > Support up to 9 users online simultaneously > Motion detection alert with snapshots via email > Allow remote view & record from anywhere anytime > Multi-level user management with password protection > Wi-Fi compliant with wireless standards IEEE 802.11b/g > Support both WEP & WPA WPA2 encryption for wireless > Support Mobile phone login from User Interface via browser directly > Support IE, Safari, Firefox, Google chrome browser or any other standard browsers Apexis ip camera APM-H803-WS IP Network Camera for sale http://www.apexis.com.cn/en/productsdetails_191.html

Apexis ip camera APM-H803-WS for wholesale Apexis ip camera APM-H803-WS IP Network Camera for sale Contact information: Shenzhen Apexis Electronic Co.,Ltd Address: 502 East Keji Building,ShenZhen High-Tech Ind-Park,Nanshan District.ShenZhen,China Phone: +86-755-26509569 Fax: +86-755-26509229 Website: http://www.apexis.com.cn http://www.apexis.cc E-mail: apexisdesigner4@hotmail.com zip:518057 APM-H803-WS IP Network Camera,Network IP Camera New Feature: > Support IR-Cut > Support Gmail/Hotmail function > 9 preset positions monitoring > Free DDNS for Remote viewing > Freely control alarm sound ON/OFF > Freely control alarm record ON/OFF Basic Feature: > H.264 video compression format > SD2.0 standard, maximum storage 32G > Built-in Microphone and Speaker > Support two-way audio function > Freely control upload image to FTP > Freely control Pan/Tilt angle by software > Freely control Pan/Tilt speed by software > Freely control network indicator LED on/off > Support up to 9 users online simultaneously > Motion detection alert with snapshots via email > Allow remote view & record from anywhere anytime > Multi-level user management with password protection > Wi-Fi compliant with wireless standards IEEE 802.11b/g > Support both WEP & WPA WPA2 encryption for wireless > Support Mobile phone login from User Interface via browser directly > Support IE, Safari, Firefox, Google chrome browser or any other standard browsers Apexis ip camera APM-H803-WS IP Network Camera for sale http://www.apexis.com.cn/en/productsdetails_191.html

Apexis ip camera APM-H401-WS for wholesale Apexis ip camera APM-H401-WS Home IP Camera for sale Contact information: Shenzhen Apexis Electronic Co.,Ltd Address: 502 East Keji Building,ShenZhen High-Tech Ind-Park,Nanshan District.ShenZhen,China Phone: +86-755-26509569 Fax: +86-755-26509229 Website: http://www.apexis.com.cn http://www.apexis.cc E-mail: apexisdesigner4@hotmail.com zip:518057 APM-H401-WS Home IP Camera,home surveillance camera,home security camera New Feature: > Support Gmail/Hotmail function > Free DDNS for Remote viewing > Freely control alarm sound ON/OFF > Freely control alarm record ON/OFF Basic Feature: > H.264 video compression format > SD2.0 standard, maximum storage upto 32GB > Built-in Microphone > Support two-way audio function > Support audio input and output > Freely control upload image to FTP > Freely control network indicator LED on/off > Support up to 9 users online simultaneously > Motion detection alert with snapshots via email > Allow remote view & record from anywhere anytime > Multi-level user management with password protection > Wi-Fi compliant with wireless standards IEEE 802.11b/g/n > Support both WEP & WPA WPA2 encryption for wireless > Support Mobile phone login from User Interface via browser directly > Support IE, Safari, Firefox, Google chrome browser or any other standard browsers Apexis ip camera APM-H401-WS Home IP Camera for sale http://www.apexis.com.cn/en/productsdetails_194.html

Previsto esclusivamente ritiro a mano a Milano città, altre soluzioni impossibilitato, non insistere, grazie. Se state leggendo, è DISPONIBILE. Amplificatore stereo con finale e pre separati, potenza uscita 21Wx2 RMS su 8 Ohm, anno 1976, perfettamente funzionante e condizioni estetiche perfette, pannello senza un graffio, prestazioni eccellenti in relazione alla potenza effettiva. Utilizzato giornalmente, qualunque prova. Technical data: Modell: DCA-250 Typ: Integrated amplifier Years: 1973 - 1976 Made in Japan Color: Silver Dimension: 420 x 130 x 330 mm Weight: 10,2 kg Price in Germany: 798. DM Input sensitivity: Phono MM 1, 2: 2,5 mV, 50 kOhm Mic: 2,5 mV, 50 kOhm Tuner: 140 mV, 100 kOhm AUX 1, 2: 140 mV, 100 kOhm Tape Play 1, 2: 140 mV, 100 kOhm Tape Play 1 DIN: 140 mV, 100 kOhm Main In: Output: Tape Rec 1, 2: 100 mV, 100 Ohm Tape Rec 1 DIN: 20 mV, 20 kOhm Pre Out: Headphone Connections for 2 pairs of speakers Continuous power (with distortion factor) 8 Ohm: 2x 21 W (RMS, 20 Hz - 20 kHz, 0,5 %) 4 Ohm: 2x 30 W Dynamic performance: Armonic distortion: 0,1 % at 8 Ohm Damping factor: 60 at 8 Ohm Frequency response: 5 - 100'000 Hz, ± 3 dB Rapport S/N: Phono: 70 dB Mic: 70 dB Tonecontrol: Bass: ± 10 dB at 100 Hz High: ± 10 dB at 10 kHz Loudness: + 8 dB at 100 Hz, + 3 dB at 10 kHz High Filter: Low Filter: - 12 dB/Oct at 40 Hz Rear panel (Main In / Pre Out) Front microphone input with mixing Prezzo non negoziabile, viste le condizioni e funzionamento eccellente del prodotto, per evitare malintesi.