Size: 24 x 9.3 x23 cm Approximately Material: Plastic Frequency of 2.4G Remote control distance: 12-20 meters Car battery: 3.7V 250 mah LithiumIon Battery Watch Battery: 3.7V 100 mah LithimIon Battery (Rechargeable) 3 different speed grades Voice Control: Voice control for speed Manual steering from watch Voice receiver, Light and Sound Ages 6 and above