https://paytmmall.com/mini-portable-wireless-bl...
1.Bluetooth Technology Connect your device in 3 seconds.
2.Outstanding connection range of up to 33 feet.
3.Full;High-Def Sound;Enjoy an impressively crystal clear sound quality and robust bass realized through a 3W audio driver and passive subwoofer.
4.Daylong Playtime;Fast Recharge;Enjoy 12 hours of music at 80% volume;up to three times longer than similar-sized portable speakers.
5.Recharge in just 3 hours.

Receiving sensitivity:> / 78db
Bluetooth Chip: Bluetooth 3.0 + EDR wireless module
Support TF card
Support FM radio function