The car shell is made of high quality and toughness PVC Material Shell, super anti-throw ability. It can be easily completed in three steps: unfold, pick up, and close, which greatly reduces the tedious steps when removing the vehicle shell. The remote control car is equipped with two LI-ion-Fe 9.6V 800mAh rechargeable batteries and two USB Chargers, each battery pack can be used continuously for about 20 minutes. The car has a top speed of 38 Km/h and has been n double swing arm that maximizes the safety of the car when it is severely impacted. You can order spare replacement parts by searching the brand BEZGAR on amazon and entering the store or search for the parts that you need according to the model number of your RC Truck. If you have any problems or questions about our products, please feel free to contact the after-sales team via Amazon message, Email, or Official website. The red indicator light will be turned on and stays lit while the battery is charging. 2 x 3.7V 1500mAh (2)A failure of Frequency Modulation, please turn off both of the remote control car and remote controller and try again. If battery power is running low, please replace the battery as soon as the indicator light is flashing.