iHome iBT74BXXC Color Changing Bluetooth Rechargeable Speaker System Wirelessly stream music from iPad, iPhone, iPod touch, Android, Blackberry and other Bluetooth-enabled devices Speakerphone features include built-in microphone, digital voice echo cancellation and answer & end controls Plays Audio from Audio devices equipped with 3.5 mm headphone jack 2-Color charging/pairing LED indicator Internal, rechargeable lithium ion battery in the speaker plays for up to 6 hours on one charge The iBT74 unit should be charged on a wall USB adapter or a computer USB port for 4-6 hrs