enjoy wireless music with the HiperSongBT Speaker. It provides powerful bass and crystal clear sound at high volumes. This speaker features Bluetooth connectivity that allows you to play your favourite tracks wirelessly. You can tune into your favourite radio stations with the built-in FM Radio function. This speaker is compact in size that makes it easy to carry. Battery charging: 5 V DC/USB. Compatibility: Wireless Connection to iPad/iPod/iPhone/Pc/Smart Phone/MID. Portable and Compact Design. Multi-functional: Support Bluetooth connection and Aux cable and TF card and FM mode. Applicable to almost all device like MP3/P4/cellphones/computers/tables with Enhanced Bass Powerful Sound. Power saving, low consumption, faster and more stably transfer. Radio frequencies range: 87.5 - 108 MHz.