5.3 Wireless Bluetooth Earphone TWS Ear Bone Conduction Earring Type Sports UK`
Bluetooth version: Bluetooth 5.3. Press the MFB key of L ear for 1 second, press the MFB key of R ear for 1 second in the previous song, and the next song. Headphone battery capacity: 40mAh. Bluetooth transmission distance: ≤ 10m.