Real horn and engine sounds 4 km/h (2.5 mph) and 8 km/h (5 mph) forward speed and 4 km/h (2.5 mph) reverse speed with parent lock out speed control FM radio with MP3 player input 12 V battery and charger included Weight limit: 59 kg (130 lb.) Your young sport SUV fan can roll stylishly in the Mercedes ML63 AMG 12V Ride-On by KidTrax. With tons of authentic Mercedes-Benz details, a sleek black paint job and chrome accents, this is a truly exciting ride-on to drive. There is room for two in the realistic interior, and your little driver can enjoy tunes via the MP3 connector and the mega-loud ported speaker system (MP3 player not included). The working L.E.D. headlights, premium clear windshield and a rear hatch that opens round out the amazing details. Complete with Power Trax Rubber traction strip tires for all terrain performance plus the Kid Trax exclusive Direct Connect one-step charging system.