Each time the forward control on the handset is activated the sound of the engine is heard followed by the trade mark backfire sound! Includes radio controlled trotter's van and handset. Van requires 3 x AA alkaline batteries (included) and handset requires 1 x 9V battery (included). Size (H)7, (W)17, (D)7cm. Not suitable for children under 36 months due to small parts which may constitute a choking hazard. For ages 8 years and over.