【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. 【Rechargable Lithium Battery】It Adopts a Rechargable Lithium Battery with 2000mAH Capacity, Which Allows it to Stay Working More than 8 Hours.
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