Portable Headphone AmplifierUs this Headphone Amplifier which make it Compact, Lightweight convenient to carry, can output remarkable sound without distortion. High/Low gain switch for optimal performance of the headphones.
Input: 3.5 mm
AUX
Output: 3.5 mm
AUXSNR: 120dBLoad
Impedance: 16--300Frequency
response: 20Hz-20kHz (3dB) More Than 15 Hours using
TimeCharging voltage: DC5VHeadphone
Amplifier Compatibility: iPhone6, iPadMP3MP4 and Computers ect products suitable for 3.5MM headphone port.
Note: Do not use it while charging, it is not safe, and the current will make noise.
OperationStep1: Make sure to turn the VOL knob to the minimum.
Step2: Connect the input with audio source.
Step3: Connect the output with headset.
Step4: Turn the knob clockwise to turn on the power.
Step5: Wear headphone and adjust the volume. Package Included1 x Headphone Amplifier1 x USB Power Cable2 x Audio Cable1 x User Manual