It includes a set of earphones and a rechargeable battery so its ready to use straight out of the box
These items as standard are set to channel 952, currently used in Brisca etc, if you are needing for specific formula please leave details in notes box at checkout so correct unit can be sent.
Currently used in the following formula’s: 
· National and Classic Hot Rods
· National Ministox,
· Grand Prix Midgets
· Ninja Karts (at certain tracks)
· 2.0 Hot Rods
· Incarods
· Micro F2 Stock Cars
· Slick Cars
· Stock Rods