COMPATIBLE WITH BLUETOOTH: This surf sound speaker is compatible with bluetooth and works with all your favorite devices like iPhone, Android, smartphone with 10 meter range and you can control volume and select songs wirelessly via connected device CRYSTAL CLEAR SOUND: The portable blue splash speaker system by Pyle Sport features speaker impedance output of 4 ohm / 2 watt and delivers stereo speaker quality sound and strong bass output for crystal clear music streaming HANDS FREE CALLS: This wireless speaker features a built in mic for hands free speakerphone call or handset call. Conveniently answer or reject a phone call with just a push of a button as long as it is still paired to your device