Audiovox Universal Vehicle Mount System for Tablets with Bluetooth Headphones (Black) Universal seat back dock, steel reinforced construction for stability Adjustable tablet dock, allows any tablet to be mounted securely 2 USB charging ports, for charging the tablet in the vehicle, built-in FM transmitter for playing back audio through the vehicles sound system Rechargeable bluetooth headphone for private listening of audio content Includes: universal tablet dock and seat back dock, 12 Volt power cable, 3.5mm to 3.5mm audio cable, rechargeable bluetooth headphone and user manual