Mypin Headphone Amplifier - 16-600Ω 3000mAh Bass Boost

Features: Mini HiFi Headphone Amplifier is Delicate, Compact, Lightweight, and Portable that it can be Carry Conveniently Built-in Rechargeble Battery, Charge by Micro USB Cable, More Convenient to charge 3.5mm AUX Input and Output HiFi Earphone Headphone Amplifier with Volume Control High Quality Audio, Suitable for MP3 MP4 Mobile Phone Laptop PC Noise Reduction Function, and Distortion with Enhanced Dynamics, Perfect Pure Stereo Effect, HD Voice Music Sound Quality Optimization Specification ： Capacity: 2000mAH（3.7V） Amp Using Time: More Than 12-15 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 2x Audio Cable 1 x User Manual Connectivity Technology: Wired Connector Type: 3.5mm Jack,USB Included Components : User Manual,Cable Special Feature: Surround Sound,Noise Cancellation,Recharge