Wireless Speaker, Lifenergy Circular Column Portable Stereo Wireless Bluetooth Speaker with Super Bass - Red Aluminium case, with silicon ring, Hi-Fi sterio, wireless bluetooth super bass portable speaker Built-in TF card slot, can play music automatically when put the TF card in, suit for iPhone, iPad, and other mobile phone with bluetooth function Support MP3/MP4 player, computer, laptop and other devices with any 3.5mm audio input. Bluetooth 2.1+EDR standard, transfering distant more than 10 meters; Power: built in Li-battery ,USB charging, can charge repeatly Portable mini wireless bluetooth speaker kingone with one-key answer function, easy to answer the calling