1. Material: ABS.2. Sizes: 180*66*23mm. Weight: 67g.3. BT 5.0, chip: JL.4. Battery capacity: charging case 500mAh, headset 90mAh.5. Charging time: 2 hours for the charging case, about 1.5 hours for the headset.6. Calls / music time: 10 hours. Standby time 200 hours.7. Surrounding semi-in-ear design, the ear cap can be rotated for 360 degrees, both left and right ears can be worn.