Requires x4 AA batteries (not included).
Works with any smart phone or tablet.
Bluetooth wireless technology.
MP3 speaker and AM/FM Stereo 2 band radio receiver.
High output power and low distortion.
Master and bass volume control.
Aux-in audio jack (connection cable not included).
Micro USB DC jack.
Play music off your device or off the AM/FM tuner.
Sand and water resistant.