KEMI X50 AIR Conduction Headphones Open Ear Headphones Wireless Sport Headphones Earbuds with Built-in Mic

* Chip model: AB5616 * Bluetooth version: 5.3 * Battery: 160mAh * Speaker: 16 * Play time:>6H * Standby time: 85H * Charging time: 2 * Function: IPX5 * Color: black, white, orange, gray * * Product size: 122*96*43mm * Net weight: 21g * Wireless working range: greater than 10 meters * Speaker sensitivity: 85??3dB * Supported protocols: AVDTP/AVRCP/A2DP * Speaker impedance: 32 ohms * Speaker frequency: 20Hz-20KHz * Input current/voltage: 5V * Material: ABS+PC * Charging interface: TYPE C *