Headphones Amplifier Portable 3.5mm Stereo Audio Out Powered Dual-Output with Lithium Battery and 2-Level Boost Headphone Amplifier (Headphone Amps)

Portable Headphone Amplifier Us 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: 3.5mm AUX Output: 3.5mm AUX SNR: ≥120dB Load Impedance: 16--300Ω Frequency response: 20Hz-20kHz(±3dB) More Than 15 Hours using Time Charging voltage: DC5V Headphone Amplifier Compatibility: iPhone6, iPad，MP3，MP4 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. Operation Step1: 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 Included 1 x Headphone Amplifier 1 x USB Power Cable 2 x Audio Cable 1 x User Manual

• Portable Headphone Amplifier which make it Compact, Lightweight convenient to carry, can output remarkable sound without distortion.
• More Than 15 Hours using Time, Load Impedance is 16--300Ω.
• High/Low gain switch and a bass boost for optimal performance of the headphones.
• 3.5mm AUX Input and Output. Works for SONY， Sennheiser RS120, HDR 120 and beyerdynamic headphone.
• Do not use it while charging, it is not safe, and the current will make noise.