Upgrade HiFi Bluetooth5.3 Motorcycle Helmet Headset Wireless Motorbike Headphone

3.40MM graphene diaphragm, unique horn structure, HIFI level sound quality. Sound quality: HIFI grade sound quality. Earphone 1. Earphone base 1. Microphone: Hard microphone. Microphone Set 1. Bluetooth version: 5.3.

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