1. Speaker unit: 40mm, 4O3W, THD+N 10%.
2. Sizes: 83*83*43mm, weight: 162g.
3. Wireless V5.0 BK.
4. Supporting protocols A2DP, AVRCP, HFP.
5. Support wireless play, calls, TF card, AUX mode.
7. Charging voltage DC5V. Charging time: about 2 hours.
8. Call / music time: 5 hours.
9. Battery: 600mAh. Class A 18650 battery.
best