Broad Compatibility: such as MP3, MP4, Mobile Phone etc.. you use iphone to headphone amp, lightning to 3.5mm cable is not included, you need to buy it yourself.
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USB Rechargeable: Headphone amplifier built-in 1050mAH rechargeable lithium battery, Which Allows it to Stay Working More than 8 Hours
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Aluminum Matte Surface: Fashion Design Provides You a Comfortable Handheld Feeling While the Aluminum Matte Surface Makes it Durable
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