KEMI K50 Open Ear Bone Conduction Headphones BT 5.3 IPX6 Waterproof 8 Hours Playtime Wireless Earphones with Mic for Running

* Chip model: AB5616 * Bluetooth version: 5.3 * Battery: 230mAh * Speaker: 14 * Play time:>10H * Standby time: 122H * Charging time: 2 * Function: IPX6 * Color: black red, black gray * Product size: 131*110*45mm * Net weight: 28g * Wireless working range: greater than 10 meters * Speaker sensitivity: 85??3dB * Supported protocols: AVDTP/AVRCP/A2DP * Speaker impedance: 8 ohms * Speaker frequency: 20Hz-20KHz * Input current/voltage: 5V * Material: ABS+PC * Charging interface: Type C *