Wireless Bluetooth FM Car Transmitter for Music, Handsfree Calling, Phone Charging and Micro-SD Card Slot (Black/Silver) + Remote Control + eCostConnection Microfiber Cloth Bluetooth Technology: Listen to music off of all your Bluetooth devices, including iPhones and Android phones. Features a low profile port placement, flexible neck, and ultra chic styling. Comes a Remote Control. Change the track, change the radio station, Call (hold for 3 seconds)/End Call Buttons, Track Number buttons and EQ button. Unit features the following buttons: Radio Channel Up/Down, Next Track/Previous Track, Play, Pause. Internal Mp3 player: put some music on a Micro-SD and play. | Charge your phone with the USB input.