Features: Adopts advanced BT4.2 technology, easy to pair with most BT-enabled devices(for iPhone/iPad/Android phones/tablets/laptops, etc), supporting 10m transmission distance. Multi-functional speaker allows to switch modes among BT mode, TF card mode, U disk mode and AUX audio mode, providing multiple modes for enjoying music. It willbring powerful stereo sound, allowing you enjoying extraordinary music experience. Built-in HD noise-cancelling microphone for convenient hands-free calls, and it will offer clear communication effect. Supports FM radio,providing you much convenience to know all kinds of news. Built-in rechargeable Li-ion battery and you can charge it via connecting the USB cable once the battery has run out of power. Easy to control the buttons to power on/off, pause/play music, adjust the volume, switch previous/next songand answer/hang up call.