1. BT v5.0. Chip: JL AC6956A.
2. Battery capacity: 250mAh, charging for about 2 hours.
3. Talk / music time: 10 hours. Standby 200 hours.
4. Sizes: 195*170*85mm. Weight: 178g.
5. Support BT, AUX mode.
6. Support Chinese and English prompt tone: double-click the M button when headphones are not paired.