Lithium battery capacity: 1500mAHAmp using time: more than 8 hoursbluetooth-compatible decoding mode: SBC, AACbluetooth-compatible protocol: A2DP V1.3.1, AVRCP V1.6 ,HFP V1.7, HSP V1.2bluetooth-compatible distance: 8m MaxAmp battery voltage: DC3.7V - 4VAmp internal working voltage: ±4VSNR>100DbTHD+N 0.0003%Adapted Headphone Impedance: 16-150ΩDimension: 96 x 61 x 15mm(L x W x H)HiFi Headphone Amplifier, It supports most headphones of high impedance 16-150Ω, 3.5mm AUX Input and Output, signal-to-noise ratio> 100Db, THD + N = 0.0003%, fully filter noise, enjoy audio.bluetooth-compatible 5.0 Receiver, It is designed to deliver studio-quality sound to your ears through wireless bluetooth-compatible 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 Mobile Phone, Computer, CD players and personal media player.Power Output:16Ω L: 90mw H: 105mw（Gain）32Ω L: 74mw H: 80mw（Gain）64Ω L: 45mw H: 50mw（Gain）150Ω L: 26mw H: 32mw（Gain）Package Content:1 x bluetooth-compatible Headphone Amplifier1 x USB Power Cable1 x 100cm Audio Cable1 x User's Manual
HiFi Headphone Amplifier, It supports most headphones of high impedance 16-150Ω, 3.5mm AUX Input and Output, signal-to-noise ratio> 100Db, THD + N = 0.0003%, fully filter noise, enjoy audio.
bluetooth-compatible 5.0 Receiver, It is designed to deliver studio-quality sound to your ears through wireless bluetooth-compatible 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。
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