Bluetooth Aluminium Speaker

Aluminium & ABS supports playback from smartphones, tablets or most other Bluetooth compatible audio devices Bluetooth mode and FM radio mode TF card function USB slot with AUX slot. built-in microphone supports call pick-up Bluetooth V4.2 + EDR. 10m visible distance. 300mAh: internal, rechargeable Li-polymer battery. playtime: 1-1.5 hours. Recharge time:  1-1.5 hours. loudspeaker output: 3WSNR: 70dB frequency: 200Hz – 20KHz buttons: On/Off slide button, Play/Pause button, Prev/Next <>,  long press <> for up volume and down volume, and On/Off button or M (mode – mode button changes from Bluetooth speaker to FM radio) recharges via USB cable ( included )