eSynic Headphone Amplifier Portable Amp 3.5mm Gain Switch Audio Rechargeable HiFi Earphone Headphone Amplifier with 1.2m USB Cable and Lithium Battery for MP3 MP4 Phones Digital Players and Computers

Portable Headphone Amplifier which make it convenient to carry, can output remarkable sound without distortion. Have High/Low gain switch and a bass boost for High Quality Audio of the headphones.

Note:
It is not recommended to use while charging, because current disturbance will occur when charging.
(That's why there is noise. When fully charge, please disconnect the power supply, and then use the headphone amplifier.)

Specification：
Capacity: 2000mAH（3.7V）
Amp Using Time: More Than 15 Hours
Working Voltage: 8.3V/1A
SNR>120dB
Distortion: 0.004%
Output Power: 40Mw in Impedance 16Ω
Headphone Impedance: 16-300Ω
Dimension: 95 x 52 x 13(L x W x H)

Package Included:
1 x Headphone Amplifier
1 x USB Power Cable
2 x Audio Cable
1 x User Manual

Mini HiFi headphone amplifier,which make it convenient to carry, can output remarkable sound without distortion.
Amp Using Time: More Than 5 Hours, Load Impedance: 16-300Ω.
Two-stage gain switch enhances the signal input into the amp circuit for optimal performance of the headphones.
3.5mm AUX input and output and SNR>120dB and Distortion 0.004% make it possibility to output not just louder sound, but a sharper.
Compatibility MP3, MP4, Phones, laptop Computer and 3.5mm Audio a Various of Digital Devices.
Mini HiFi headphone amplifier,which make it convenient to carry, can output remarkable sound without distortion.
Amp Using Time: More Than 5 Hours, Load Impedance: 16-300Ω.
Two-stage gain switch enhances the signal input into the amp circuit for optimal performance of the headphones.
3.5mm AUX input and output and SNR>120dB and Distortion 0.004% make it possibility to output not just louder sound, but a sharper.
Compatibility MP3, MP4, Phones, laptop Computer and 3.5mm Audio a Various of Digital Devices.

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