It comes with the Allen wrench, and the eight screws needed to mount it.

The TRAXXAS ON BOARD AUDIO is a rare accessory designed specifically for the TRAXXAS SLASH and chassis frame. This product, known as the OBA (On Board Audio), enhances the audio experience of the RC model vehicle by providing a built-in audio system. With the TRAXXAS brand reputation for quality and innovation, this on-board audio system is sure to provide a superior sound experience for RC enthusiasts looking to upgrade their vehicles.