Neoteck HiFi Headphone Amplifier Bluetooth 5.0 Receiver 3.5mm Audio

Product Show Product Details HiFi Headphone Amplifier , It supports most headphones of high impedance 16-300Ω, 3.5mm AUX Input and Output, signal-to-noise ratio> 100Db, THD + N = 0.0003%, fully filter noise, enjoy high-quality audio. Bluetooth 5.0 receiver , It is designed to deliver studio-quality sound to your ears through wireless Bluetooth 5.0 technology-suitable for your existing wired headphones, earphones and even speakers. 1500mAH Rechargable Lithium Battery , It adopts a rechargeable lithium battery with 1500mAH capacity, which allows it to stay working more than 8 hours. Plus, there is a volume control knob for volume adjustment. Two-stage Gain Switch , It enhances the signal input into the amp circuit for the optimal performance of the headphones. Make it Possibility to output not only louder sound but a sharper and more Real stereo sound without distortion Broad Compatibility, This amplifier is remarkably compatible with a variety of digital devices, such as MP3, MP4, Mobile Phone, Computer, CD players and personal media player. Overview: This Bluetooth headphone amplifier design is normally used to drive a headphone with a high impedance in 16-150 Ω . With two-stage Gain Switch, It can connect various audio players and mobile phones to process, amplify and output its audio signals. Well, if you need a sound boost, that's the one for you! Please note before use: 1）About Bluetooth input mode: For iphone, you are probably required to pair your phone with our headphone amplifier each time. Please follow below: Settings---Bluetooth---My Device, then click "Neoteck RX5.0" to pair. 2）About disturbance: It is not recommended to use while charging, because current disturbance will occur when in charging. That's why there is noise. When fully charge, please disconnect the power supply, and then use the headphone amplifier. Specification: Adapted Headphone Impedance: 16-150Ω SNR >100Db THD+N 0.0003% Lithium battery capacity: 1500mAH Amp using time: more than 8 hours Bluetooth decoding mode: SBC, AAC Bluetooth protocol: A2DP V1.3.1, AVRCP V1.6 ,HFP V1.7, HSP V1.2 Bluetooth distance Max: 26ft/ 8m Amp battery voltage: DC 3.7V - 4V Amp internal working voltage: ±4V Dimension: 96 x 61 x 15mm(L x W x H Two-stage gain switch: L/H Enhances the signal input into the amp circuit for optimal performance of the headphones. 16Ω L: 90mw H: 105mw 32Ω L: 74mw H: 80mw 64Ω L: 45mw H: 50mw 150Ω L: 26mw H: 32mw Charged by Micro USB Cable Tips: 1) come with a USB Power Cable, adapter is NOT included. You could use 5V 1A adapter of your mobile phone or tablet to connect USB cable. 2) It is not recommended to use while charging, because current disturbance will occur when in charging. That's why there is noise. When fully charge, please disconnect the power supply, and then use the headphone amplifier Package List: 1 x USB Power Cable 1 x 3.5mm Headphone Amplifier 1 x Audio Cable 1 x User Manual

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