Neoteck Headphone Amplifier Portable 3.5mm Audio Rechargeble HiFi Earphone with Lithium Battery and Aluminum Matte Surface

【Mini HiFi Headphone Amplifier】It's A Cost-effective Gadget to Improve Sound Quality. It is Delicate, Compact, Lightweight, and Portable that it can be Carry Conveniently 【3.5mm AUX Input and Output】3.5mm AUX Input and Output, SNR>100Db and THD+N 0.0003%, Make it Possibility to Output not just Louder Sound, but a Sharper and More Real Stereo Sound without Distortion 【Aluminum Matte Surface】Fashion Design Provides You a Comfortable Handheld Feeling While the Aluminum Matte Surface Makes it Durable 【Rechargable Lithium Battery】It Adopts a Rechargable Lithium Battery with 2000mAH Capacity, Which Allows it to Stay Working More than 8 Hours 【Universal Compacity】It can Remarkably Compatible with a Various of Digital Devices, Such as MP3 MP4 Mobile Phone Computer