Updated 2s 7. 4v battery new transmitter updated plastics, shocks & drivetrain package: color box color: red/yellow qty/ctn: 6 pcs carton size: 46—43—59 cm g. W. : 14. 1 kgs n. W. : 12. 1 kgs scale? 1?12 frequency: 2. 4ghz product size: 34. 2—26—13. 5 cm package size: 41. 5—28. 3—14. 5 cm speed: 40km/h control distance: 80m charging time: 2h using time: 20 min battery of car: 7. 4v 1500ma li-ion weight of the car: 1052 g controller size: 16. 5—9—21cm package weight: 2010 g controller battery: ""aa""—3 (not including? Features: 1. The charger has charging voltage limiting protection. 2. The battery adopts over discharge protection and low voltage protection 3. The circuit board has overheat protection function. 4. The whole car has bearings, metal transmission shaft and transmission cup certificates: rohs?r&tte?fcc ?en71?en62115?en60825?hr4040?cpsia)?astm?7p? (trc-9116x)