1. Material: ABS. 2. Sizes: 66*14*27mm. Weight: 6g. 3. BT v5.0. Chip: JLAC6963. 4. Battery capacity: 70mAh, charging time is about 1 hour. 5. Talk / music time: 6 hours. 6. Standby: 180 hours. 7. Support Chinese and English prompt tone: double-click the multi-function button when headset is not paired.