1. The noise of the switch is small and will not have too much impact on the speaker. It is recommended to add a horn protection circuit. The horn protection circuit can not only eliminate the impact noise of the power amplifier switch machine, but also avoid the output DC burning the horn when the power amplifier is damaged. 2. The bottom noise is small. Zero floating small, do not need to do any debugging after installation, the output zero drift voltage will generally not exceed 50mv, and is relatively stable. 3. Free debugging. As long as the connection is correct, no one is wrong, basically it is a success, no need to do any debugging, beginners also have a very high success rate. Note: 1.2SC5200 + ZSA1943 are disassemble parts,but in good condition. 2.The PCB board has change to black, but the function is same. Operating voltage: Dual DC 10 - 45V recommended Dual DC 35V Rated output power: 100W(4 Ohm ± 35V) Maximum output power: 150W (4 Ohm ± 45V) enormous heat, is not recommended PCB size: 30 x 50 x 35mm Pitch: 5.08mm Hole distance between two power tube: 47mm color:As shown Material:PCB Package Contents: 1 x Amplifier board Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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1 x Bose 45 Headphones. Uncompromised Wireless Sound. Amazon Google Voice Assistant Button. 1 x Carrying Case. 1 x USB Charging Cable.
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Replacement Earpads Ear Cushion Pads Fit For JBL Lifestyle E65BTNC Live 650BTNC Tune 660BTNC Duet NC Noise-Cancelling Headphones
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1. Design, Tight Fit, 1:1 Mold Opening, Easy Installation And Removal 2. Smooth Pen Tip, Smooth And Continuous Touch, Smooth Writing Without Damaging The Screen 3. Native Pressure Sensitivity, Sensitive And Accurate, Does Not Damage The Screen 4. for Xiaomi Inspiration Stylus, Needle Tip 5. Damping, Wear-Resistant, Silent And Noise Reductions Applicable Models: for Xiaomi Second Generation Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour:A:White needle tube /B: black replacement/C: parent replacement/D: parent needle tube/E: white replacement/F: As Shown Material:plastic Package Contents: 5 x Stylus Tip Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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Could be found on google, search "Bose QuietComfort 35 Headphones Manual". the headphones. ABERDEEN: AB 10 - 16, AB 21- 25, AB 30 - 35, AB 39, AB 41 - 43, AB 51 - AB 53. Warranty does not apply to conditions resulting from abuse, accident, improper application/use.
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SDR Receiver RTL2832U + R820T2 Chip 1PPM TCXO ADS-B 0.1MHz-1.7GHz Full Band Software Defined Radio Receiver Description: The signal received by the antenna is converted into data by this receiver and sent to the computer, Android phone and other devices through the USB interface. The software on the computer and Android phone and other devices processes the demodulated signal, displays the frequency spect , and arbitrarily sets the reception. Bandwidth, signal recording, saving, playback and other functions. Receives electromagnetic waves in the range of 100KHz-1.7GHz supports AM, FM (NFM, WFM), CW, DSB, LSB, USB demodulation. Can be used to listen to short-wave single-sideband communications, FM radio, intercom calls, aviation bands, meteor monitoring ADS-B decoding, AIS signal reception, etc. Feature: This receiver has a built-in 1 ppm temperature compensation crystal (TCXO). Make the frequency more stable and accurate. The almost zero temperature drift (2 ppm initial deviation, 1 ppm temperature drift) increases the internal chip heat dissipation, making the work more stable. Using the latest RTL2832U + R820T2 solution (R820T2 tuner has slightly better sensitivity than R820T, lower background noise and higher signal-to-noise ratio. Can work more stably at frequencies around 1.5 GHz. ) The Q channel on the RTL2832U is used to increase the direct mining reception of the frequency of 100KHz-24MHz. Achieved 100KHz-1.7GHz full segment reception. Support for Windows XP/7/8/0, for MAC, for Android and other systems. Specification: Type: with Antenna Product size: 71 x 43 x 19mm/2.80 x 1.69 x 0.75 inch Product weight: 34g Color: silver material: metal Package Contents: 1 x RTL SDR Receiver 1 x Antenna Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture
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B8 Walnut Wood Wearing HIFI Fever Headphones 50mm Beryllium Dynamic High Fidelity Headphones Stereo Noise Cancelling Headphones
Aliexpress UK
Bluetooth and NFC pairing let you connect to your devices quickly and conveniently, so you can listen to a podcast on the train or music at work. Decide how much of the world you want to let in, or how quiet you want your surroundings to be, with adjustable noise cancellation.
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KZ EDX PRO Earphones Dynamic In Ear Monitoring Wired Headphones HiFi Deep Bass Sound Earbud Sport Music Noise Cancelling Headset
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1 x Bose QuietComfort 35 I Headphones. Wireless sound without compromises. Google Amazon Voice assistant button.
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Feature: 1,Solar panels, environmental protection, energy saving and money saving. 2,Outdoor solar panels can efficiently convert sunlight into electricity. 3,By connecting different nozzle fittings, the spray height will vary. 4,Suitable for water circulation oxygen supply in garden swimming pools, fish tanks, ponds and aquariums. 5,Simple and convenient installation. 6,The lift of the motor is 5 meters Specification: Name: Solar panel water pump set Solar panel material: monocrystalline silicon Pump material: ABS Solar panel power: 50W Open circuit voltage: DC 12V Short circuit current: 2A The head of the motor: 5 meters Maximum flow of water pump: 800L/H Solar panel size: 42 x 28cm Scope of application: For garden/swimming pool/fish tank/pond/aquarium, water circulation and oxygen supply continue to work Different batches may result in different product appearances, printed text, and colors, which do not affect usage Color: Black Material: plastic Package Contents: 1 x Solar Charging Pad 1 x water pump 1 x voltage stabilizer(random color and appearance, don't accept the specified color.) 1 x Water pump base 2 x DC Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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Wireless Earbuds for Sleeping invisible Small Bluetooth Eraphones Mini Comfortable in-Ear Sleep Noise Cancelling TWS Headphones
Aliexpress UK
Increase your signal with this GPS external antenna with built in low noise amplifier (LNA). The magnetic base allows you to conveniently attach it to to the roof of your car. Make good use of the GPS port on your Car Head Unit. Instantly have location and speed data on your navigation software. Specification: Connector:GT5-1S Voltage:3 to 5 Volt Wire Diameter:2.8mm Length:3 M LNA Gain(Without Cable):27dB Center Frequency:1575.42 MHz Size:41x47x15mm / 1.61x1.85x0.59 inch (L x W x H) colour:Black Material:plastic Package Contents: 1 x GPS Active Antenna Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
Fruugo United Kingdom
Bose QuietComfort 45 / QC45 Noise Cancelling Wireless Headphones - Black
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New OPPO Enco Air4 Earphones Wireless Bluetooth 5.4 ANC Noise Cancelling Sports Game Headphones HiFi Stereo HD Mic Call Headset
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Retro Painted Zipper Wallet Back Phone Case 1. Durable: TPU and PU leather material, wear-resistant and durable. With good performance and high quality can be used for a long time. 2. Wallet Function: The leather case is equipped with card slots for placing cards and a small amount of cash. 3. Convenience: All buttons and ports can be accessed, charged, and connected to the headphone cable without removing the phone case. 4. Anti-fall: Four-corner TPU all-inclusive design, very good resistance to falling. 5. Protection: It adequately protects devices from the normal scratches, dirt, tear and wear. 6. Kickstand Function: The kickstand can be switched to a horizontal position and acted as a firm stand. Gives your phone a comfortable viewing angle. Note: The actual product is subject to the title model, the picture model machine is only for effect reference.
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Use the Bose Connect app to adjust the level of noise cancellation, enable music sharing, manage Bluetooth connections and access software updates. Renowned noise cancelling headphones. Go deeper into your music, work and passions—with no noise in the way.
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Realme Buds T110 Earphone Bluetooth 5.4 AI ENC Noise Cancelling Headset IPX5 Waterproof 38 Hours Battery Life 460mAh Headphones
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Bose QuietComfort 20 Noise Cancelling Headphones Bose QC20 Earbuds For Apple iOS. With QC20 headphones you'll enjoy lifelike, digital sound quality that stands out from the noise around you along with the freedom of an in-ear headphone.
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COMPATIBILITY - Fits Sony, Bose, LG HBS-1100, Etymotic Research, Westone, Klipsch, Shure, AKG, B&O Play, Beats, Denon, Jabra, Jaybird, LG, MEE Audio, Philips, RHA, Samsung, Sennheiser, Skullcandy and more. Multiple core sizes allow you to find the perfect fit for your earphones. ANTI-DUST & DURABLE: Upgraded premium replacement earbuds keep earwax, debris, and sweat out of the earphones nozzle to protect your earphones and keeping the sound path open. Long lasting, slow rebound, not easy to break. ENHANCED COMFORT - 30x softer Super-Soft Memory Foam reduces earphone, feel free when using. Patented viscoelastic memory foam offers superior audio experience enhanced bass and block out external noise. A PERFECT FIT: Advanced Body-heat activated memory foam can change by your body temperature provide a perfect seal and snug fit to keep your earphones in place, perfect for fixing headphones to prevent falling when workout. PACKAGE INCLUDING - 2 pairs * Small size, 2 pairs * Medium size, 2 pairs * Large size ear tips.
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Wireless Earbuds BT5.3 Headphones HiFi Stereo EarBuds with ENC Noise Cancelling Mic 48H LED Display IP7 Waterproof Earphones
Aliexpress UK
1 x QC25 Headphones. Bose Quietcomfort 25 Wired 3.5mm Noise Cancelling Headphones - QC25-For iOS ONLY. Bose SoundSport Wired 3.5mm Jack In-Ear Sports Headphones Charcoal Black for iOS. Apple compatible devices Applies to: QC 25 noise cancelling headphones Apple devices The remote and mic are compatible with the following Apple devices: iPhone 3GS or later iPad iPod touch 2nd generation or later iPod classic 120GB, 160GB iPod nano 4th generation or later.
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Description: Name: Tinnitus Treatment Drops Capacity: 30ml Gross Weight: 48g Size: 3*3*10.5cm Ingredients: Purified Water, Lavender Oil, Lemon Extract, Grape Seed Oil, Olive Oil, Vitamin E Storage Method: Cool And Dry Place Specifications: 1. May Help Relieve Ringing, Buzzing, Whistling, Chirping, Swelling, Sensitivity To Sound 2. Improve Sleep And Quality Of Life, Relieve Tinnitus, Reduce Ear Noise 3. Improve Blood Circulation In The Ears And Relieve Headaches 4. Rich In All Kinds Of Natural Vitamins And Nutrients, Protect The Ear Nerve 5. It Can Significantly Improve People's Hearing And Reduce The Risk Of Ear Inflammation And Infection How To Use: 1. Please Lie On Your Side Before Use 2. Drop 3-4 Drops Of Ear Drops On The Ears And Let Stand For About 10 Minutes 3. Use A Cotton Ball To Wipe The Dirt Outside The Cochlea Package Included: 1 * Tinnitus Treatment Drops
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M A X Wireless Over-Ear Bluetooth Headphones for Apple, HiFi Stereo Noise Cancelling Headset with Transparency Mode
Aliexpress UK