1. Speaker: 5.3cm
2. Size: 8.6cm x 8.6cm x 4.4cm, weight: 140g
3. Bluetooth V4.2
4. Support protocols A2DP, AVRCP, HFP, HSP
5. Support Wireless, TF card, AUX mode play
6. Charging voltage DC 5V, charging time: about 2 hours
7. Call/music time: about 3 hours
8. Battery: 500mAh