Aluminum Portable Headset Amplifier HiFi Audio Headphone Amplifier Sound Improver AMP 600mAh with 3.5mm Port

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Description

Features: Using aluminum alloy shell, feel comfortable, good heat dissipation. The appearance is small and atmospheric, easy to carry. There is an independent gain control switch. The operational amplifier is suitable for both positive and negative power supplies. With 3.5mm input and output interface, suitable for connection of various types of smartphone computer equipment. Built-in 600mAh rechargeable lithium battery, low power consumption, working time is about 8 hours.

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