Charging protection: Protection function for overcharging and overcurrent of the battery. Low voltage protection: When the battery level of the receiver is 6.5V; The receiver automatically stops working. High temperature protection: When the working temperature of the receiver is higher than the set value, the receiver protects control circuit; After the temperature is normal, the ash will resume working. This model has full proportional synchronous control functions such as forward, backward, left and right turns, and . 1. Product description: 1: 16 2.4G pickup truck 2. Product battery: 7.4V 500mAh NI- battery (included); 3. Charging : USB charging, the red light turns on when charging; 4. Charging time: 2 hours; 5. Remote control battery: 2x1.5V AA batteries (not included); 6. Play time: 20-30 minutes; 7. RED remote control distance: more than 35 meters; type: A-Without Lights size: about 33.5 x 13.5 x 11.5CM Material: Plastic + metal + nylon colour: white+black Package Contents: 1 x RC Car(With 7.4V 500mAh NI- battery) 1 x Remote Control(without 2x1.5V AA batteries) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.