This is an outdoor style Bluetooth speaker with rugged and solid outer appearance. It supports Bluetooth 4.0 technology and complies with iPhone, iPad and other Bluetooth devices. 5 built-in driver units, 6 watts (RMS) output power brings enough high quality music playback, its playing time is longer than 7 hours, this makes it the best choice to hook up with your Bluetooth devices no matter you are at home or in outdoors(swimming, hiking, surfing, riding,.etc)