1. Material: ABS 2. Size: 105*55*30mm; Weight: 23g 3. Wireless version: 4.1; Wireless chip: JL AC6973 4. Battery capacity: 90mAh; Charging time: 3h 5. Talk and music time: 4h, standby time: 80h 6. Language supported: Chinese and English 7. The part contacting ears is 360 soft material, providing comfortable wearing 8. The Mic rod rotating in 270��, the earhook rotating in 180��, applicable to both ears for wearing 9..Voice prompt switch��When powered on, press and hold the music play/pause button for 2 seconds and there will be a beep
