1. BT 5.0, chip: JL Jerry. 2. Battery capacity: 300mAh, charging time is about 2 hours. 3. Calls / music time: 8 hours. 4. Standby 200 hours. 5. Speaker unit: 40mm. 6. Sizes: 190*165*80mm. Weight: 184g. 7. Support BT, TF card, AUX and other playback modes.