The Xit AXTRECBK rectangular Bluetooth speaker is compact with an amazing, high quality sound. Play your music anywhere from your iPhone, Android or other smartphone as well as MP3 players. It complies with Bluetooth 3.0 + EDR technology and has a 30 foot range. It comes complete with a USB charging cord, an auxiliary input cord with 3.5mm plugs and a removable lithium battery. Complies with Bluetooth 3.0 10 meter/30 feet range Works with most Bluetooth enabled devices AUX input function to work with non-Bluetooth devices Removable lithium battery Built-in microphone to answer calls Works with mobile phones, MP3 players, tablets and e-book readers