Features: 1.Support A2DP,AVRCP, Handsfree profile, FM radio 2.With FM function, can search radio station broadcast automatically 3.International advanced Wireless chip and circuit design techniques, support all wireless devices. 4.With Hi-Fi speaker, to make sure the clear and bright sound. 5. Support Micro SD card and USB card, play MP3 format audio. 6.The wireless working distances 10 meters. 7.With AUX line in, can directly connect the outside devices, for example, tablet PC/TV/cellphones. 8.It will close automatically after 30 mins if Bluetooth-compatible mode no connection Specification: Bluetooth-compatible Version:V5.0 Working Range: 10meters Dimension:190*70.4*70.4MM Loudspeaker Output:5W*2 Signal-to-Noise:90dB Distortion: 0.5% Battery Voltage/Capacity:1200mAh Battery Charging Voltage:5V /500mAH Play time values for speakers :8-10 hours Package includes: Speaker*1 USB Cable*1 Audio Cable*1 User Manual*1