B8 Kabelloser Knochenleitungskopfhörer (ohne Ohrstöpsel) mit extrem langer Standby-Zeit

B8 Wireless B8 Bone Conduction Headphones No Earbuds Ultra Long Standby. Specifications: Colour: black. BT Version: 5.3 Speaker: Bone conduction vibrator Weight: 25g Playback time: 11 hours (medium volume) Waterproof Level: Life Waterproof Capacity: 180mAh Frequency: 20Hz ~ 20KHz Transmission distance: 10m Box contents: 1 x Bone Conduction Cap elease your ears to listen to the world, you can quickly respond to the surrounding situation, away from dangerous. Keep away danger: free your ears to listen to the world, you can quickly respond to the surrounding situation, away from danger, suitable for outdoor activities. BT 5.0 ensures high data transfer speed, stable connection and low power consumption. Free to listen to hands-free calls or BT music via BT connection. The sound transmits through the bone to the auditory nerve, no need to put in the ear, no damage to the eardrum, good for the user to avoid ear disease and hearing loss.