Noise and hum
Elenco noise and hum
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3a-1aoutput interface: smareference enr (extra noise ratio): 0here we mean that the spectrum is not connected to the noise source and the signal strength is poor after the noise source is connectedjust replace the tracking source directly q: what is enra: enr, the full english name is excess noise ratio, that is, the multiple of the noise source exceeding the standard noise temperature t0 thermal noise5g/20db,qa:q: what is this and what is it for?a: noise source, generate noise, can be used as spectrum tracking source, interference sourceq: what is the basic principle and how to use it?a: using a special voltage regulator tube, white noise is generated in the breakdown state, and then amplified5ghz);power supply: 12v1a;power supply: dc12v/0package includes:1 x dsa815 spectrum analyzer5g/30db, 3g/27db, 35g/55db, 1g/52db, 1feature:test equipment: dsa815 spectrum analyzer (9khz-15g/48db 2g/38db 2
Italia
138100004196167 €
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*the self-developed noise reduction technology can effectively filter noise, and can still record clearly in noisy environments4g smart noise cancelling wireless lavalier microphonemicrophone type: condensershell material: absconnection port: type ctransmission range: 20mfeatures:ultra-high sound qualitysmall and portable360° omnidirectional pickuplong battery lifeintelligent noise reduction*2*large-capacity battery has long battery life, built-in large-capacity lithium battery, and the power is durablenotice:to connect vivo and oppo mobile phones, the otg function needs to be turned on*20 meters of effective transmission without delay, high-performance wireless technology, ultra-stable signal, audio and video synchronizationif there is anything you need to know, please contact us, and we will answer it for you*the fingertip size is easy to carry, and the weight of a single transmitter is 8g / the weight of the receiver is 4g4g wireless technology, automatic frequency pairing is ready to use*suitable for live broadcast, outdoor shooting, interview recording etc*receiver charging port, charge the phone while using it
Italia
18020000457763672 €
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Lightweight and portablewith a weight of only 95 grams, it is very suitable for travel and easy to carry arounddescription:oclean air 2 smart sonic electric toothbrush ipx7 waterproof portable lightweight toothbrush magnetic fast charging three brushing modes electric toothbrushfeatures:- ultrasonic active noise cancellation technologyit is driven by ultrasonic signal technology above 20000hz, and is equipped with noise suppression algorithm to suppress the sound waves generated by the motor, eliminate noise, and provide users with a quiet and pleasant brushing experienceipx7 waterproofit is convenient and practical to brush your teeth while taking a showerthe three-dimensional bristles are more suitable for the oral cavity, and the cleaning effect is 20% higher than that of ordinary bristles- one-click operationpress and hold for 2s to switch to mild or clean mode as needed- magnetic fast charging2high density flockinghigh-density hair implantation, intensive cleaning of dental plaque, gum protection and deep cleaning between teeth; double-pointed silk bristles, gentle gum protection design, protects gumsspecifications:brandocleanmodelair 2colortulip white, rose pink, iris purple, dark greenbrush headmagnetic brushless motormotormagnetic brushless motormodegentle(default mode), cleaninput5v/05 hours full charge, 40 days battery life; long-lasting battery life without interruption5 hours full cha5wcharging specification usb magnetic charging, 2
Italia
5256999969482422 €
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1% precision resistor, high-quality fever capacitor, ultra-low noise and wide sound field, good separation of left and right channels54 3p two input sockets, no noise and current sound, suitable for small space installationcurrent feedback architecture; dynamic range greater than 120db; snr is 120db;the output noise at a gain of 2v/v is 5μv;conversion rate: 1300v/ms; built-in short circuit and thermal protection;compatible with 3the amp board ac and dc dual power supply 12-24v is available, the thrust is very large, 600 euro headphones are not to mentionpackage includes:1 x tpa6120 headphone amplifier boardparameter:product name: tpa6120 headphone amplifier boardchip type: tpa6120a2input voltage: dual ac12-24v(recommend dual ac12v 30w)output impedance: 8-600 ohmprotection function: short circuit protection, over temperature protectionsize: 80*52*19mmfeature:the tpa6120a is a hifi-class stereo headphone amplifier from ti that provides 80mw to 600ω at a ±12v voltage at (thd+n) of 0,00014%
Italia
8869999885559082 €
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Compound diaphragm - the treble is transparent without distortion, the bass is thickand pure, and the sound quality is delicate and pleasantenc noise reduction - the dual microphones can communicate clearly, effectively isolating environmental noise, and can communicate clearly even in crowded streetsergonomic design - stable and comfortable to wear, you dont have to worry about earphones falling when you traveldual independent chips - after the headset is successfully paired for the first time, take out the headset again to automatically pair, and quicky connect without waitingsilicone cavity - unique headphone head design, not only can reduce noise, but also comfortable to wearcaratteristiche:hlifi stereo subwoofer - the latest audio analysis technology, high frequency, intermediate frequency,low frequency can be clearly presented, bringing better sound quality0 distanza di trasmissione≥10 m tempo di carica1specifiche: marcalenovomodellolp12versione bluetooth55(headphone) capacità custodia di ricarica: 300 mahheadphone: 35mah*2 porta di ricaricatipo-c microfonosì touch controlsì il pacchetto include1 pair * headphone1 * charging case1 * cavo di ricarica1 * manualebassa latenza - enjoy the smooth gaming experience brought by low latency5h(headphone) tempo di musica3
Italia
2206999969482422 €
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âš¡[low noise and easy to use]âš¡- the electric engraving machine works with low noiseâš¡[wide application, best gift]âš¡- our etching and engraving tools work precisely and comfortably on almost any surface, including glass, metal, wood, plastic, leather, jewelry, and more! personalize and decorate collfeatures a durable, lightweight aluminum frame and ergonomic handle to give you precise fingertip controlthe improved high performance 25000 rpm motor provides better control and handling than similar competitors with many other motors on the marketâš¡[adjustable 3-level speed]âš¡- the power is up to 25w when working, and the 3-level speed can be adjusted in the range of 5000-25000 r/min for different materialssuper easy to use, perfect for beginners or professionalsintelligent overload protection chip, this engraving tool has a built-in safety protection circuit boardyou can take it with you5mm hardened drill bit, 1 2âš¡[30 rotary bits, 36 templates]âš¡- our engraving kit will come with 30 rotary drill bits, 1 1comes with usb charging cable35 handle extension, 3 saw blades (22mm, 25mm, 32mm)we also offer 105 accessory engravingsthere is no need to worry about affecting the rest of the familyour etch engraver tools have a lightweight bodycaratteristiche:âš¡[intelligent power failure protection]âš¡-our metal engraving tools are rechargeablewhen the working resistance is too large, it will automatically cut off the power to prevent damage to the engraving pen
Italia
2406999969482422 €
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0 bose noise cancelling headphones 700 let nothing come between you and your musicbose noise cancelling wireless headphones 700 - bluetooth 5
Italia
32829998779296875 €
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Amazfit bip lite 3,25 cm (128") - (hum amazfit bip lite ita blu a1915) amazfit bip lite 3,25 cm (128") - (hum amazfit bip lite ita blu a1915)
Italia
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43") lcd 40 mm verde - (hum amazfit a2017 bip u ita grn)amazfit bip u 3,63 cm (143") lcd 40 mm verde - (hum amazfit a2017 bip u ita grn) amazfit bip u 3,63 cm (1
Italia
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Amazfit gts 2 mini 3,94 cm (155") amoled 40 mm rosa - (hum amazfit a2018 gts 2 mini ita pnk) amazfit gts 2 mini 3,94 cm (155") amoled 40 mm rosa - (hum amazfit a2018 gts 2 mini ita pnk)
Italia
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Ausdom anc10 active noise cancelling wireless headphones - bluetooth 50, 360mah, 20hz-20khz ausdom anc10 wireless headphones provide rich and clear sound so that you can enjoy your music to the fullest
Italia
4829999923706055 €
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Il controllo della sensibilità determina il livello quando entra in gioco il noise gatecaline cp-39 noise gate pedale effetti per chitarra pedali in lega di alluminio con riduzione del rumore fuctionancora un altro grande pedale di caline! il noise cp-39 è un pedale noise gate che può aiutare a ridurre il ronzio del rumore e il ronzio di altri pedali (in particolare la distorsione ad alto guadagno) nella catena del pedalecaratteristiche:-il pedale del noise gate serve a ridurre il ronzio del rumore e il ronzio di altri pedali (in particolare la distorsione ad alto guadagno) nella catena del pedalescocca in lega di alluminio, resistente e robustauna manopola di controllo per regolare il volume della riduzione del rumoretrue bypass, e con led luce per indicare effetti o stato di bypass2 modalità di lavoro: hard (riduzione del suono ad alta frequenza) e soft (riduzione del suono a bassa frequenza), consente di avere un tono più eccellenteil selettore a due vie controlla se il cancello spinge in avanti in modo aggressivo un taglio di volume ripido, o più dolcemente con un taglio gradualeci sono due controlli principalidescrizione:materiale: lega di alluminioingresso segnale: 1/4 jack monofonico (impedenza: 1m ohm)uscita del segnale: 1/4 jack monofonico (impedenza: 1k ohm)alimentazione: alimentatore dc 9v (negativo centrale) o batteria 9v (entrambifunziona con un alimentatore 9va impostazioni più alte qualsiasi cosa sotto lo strumming aggressivo verrà tagliata
Italia
34630001068115234 €
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Ksix tws active noise cancelling earphones - bt50, 60mah/500mah, 10mm, 16ohm the ksix tws anc headphones are designed for an immersive music listening experience and hassle-free calls
Italia
5870000076293945 €