Voice Command Cars are designed in a fancy look with cool colors There are 5 control modes, 8 Voice-activated modes so that you can enjoy it when you play for better signal, please focus your voice command on the smart watch within the best remote range at 20cm to 40cm. Voice command and manual direction control together can bring with wonderful action-effects. Light pressing on the Pause button, command stop instantly. Battery power: 3.7V 250mAh Li-Polymer battery (built-in). Car Charging time: About 50-60mins. English manual book is included for easy setup & operation. • Frequency: 2.4GHz • Body: transparent paint + UV paint • Body Battery: 3.7V 250mAh lithium battery • Usage Time: 25-35 minutes • Charging Time: about 50-60 minutes • Watch Battery: 3.7V 100mAh lithium battery • Usage Time: 70-80 minutes • Charging Time: about 15-20 minutes • Remote control distance: 12-20 meters • Overcharge and discharge protection • Voice control mode: (in English) Go forward, Go back, Turbo, Car Brake, Light On, Light Off, Spin Out, Demo • Watch manipulation mode: one button start, left turn, right turn, acousto optic switch, speed files