Bluetooth portable speakers Hoco BS31 black

1. Speaker: 53mm.
2. Size: 86*86*44mm, weight: 140g.
3. Wireless V4.2 JL.
4. Supporting protocols A2DP, AVRCP, HFP, HSP.
5. Support Wireless, TF card, AUX mode play.
6. Charging voltage DC5V, charging time: about 2 hours.
7. Call / music time: about 3 hours.
8. Class A polymer battery: 500mAh.