1 Plug & Play your MP3, iPod?or any audio source into our universal audio input - works with any audio source that has an earphone jack 2 Built-in aluminum cone speakers for an out-loud audio experience 3 Energy boosting music and massage 4 Music plays with or without massage 5 Comes with home and auxillary auto adaptor - perfect travel companion for your car 6 Portable with integrated carry handle and storage pouch 7 Control the volume through your audio source and the massage & heat through the integrated hand control 8 five invigorating massage motors plus soothing heat 9 Adjustable intensity and personalized body zone control