Overview：
This HiFi headphone amplifier design is normally used to drive a headphone with a relatively high impedance.It can connect various audio players and mobile phones to process, amplify and output its audio signals, which can drive all kinds of earphones.
Features:
HiFi Headphone Amplifier, It supports most headphones of high impedance16-300Ω, 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,Itis 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.
Specification：
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: 8m Max
Amp battery voltage: DC3.7V – 4V
Amp internal working voltage: ±4V
SNR>100Db
THD+N 0.0003%
Adapted Headphone Impedance: 16-300Ω
Dimension: 96x61x15mm(L X W X H)
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）
Note:
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.
Package Contents:
1 x Bluetooth headphone amplifier
1 x USB Power Cable
1 x 1m Audio Cable
1 x User’s Manual
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