The Mitsuba Guard Dog II is a vehicle security alarm with a remote control. Mitsuba Guard Dog II This security system attaches to the steering wheel. There is no battery leakage from the main unit or the remote control. I have confirmed the operation of the unit before listing it. Please understand that this is a used item, and only purchase if you are comfortable with that. - Brand: Mitsuba - Model Name: Guard Dog II - Included Items: Remote key - Battery Type: AA batteries - Functions: Set/Reset button Thank you for viewing.