The USB charger is designed for charging 2 in 1 RC car batteries with a capacity of 1000mAh each. It operates at a voltage of 7.4V and uses LiPo chemical composition. Made in China, this charger is ideal for keeping your RC car batteries powered up and ready to go for endless hours of playtime. Its compact design and efficient charging capability make it a must-have accessory for any RC car enthusiast.