1. accord with bluetooth V2.1+EDR(A2DP)
2. speaker: independence(4Ω)/ sized40mm/power(1*3w)
3. material:ABS
4. Dimeter:80*31.8mm
5. standard Battery:Built in rechargeable 3.7v /500mAH Lithium battery
6. Bluetooth Transmission range<10m
7. charing time:3hrs, playtime: 6hrs
8. IP grade:IPX4
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