Using this DaiChi car accessory socket triple adaptor is easy. Just plug it into your car's accessory socket. You can then connect up to two other accessories or adaptors, or use three power adaptors at once. For example, you can plug in your mobile phone charger, your kids' game console, and still use the lighter. When using, make sure the accessories you connect are within the power - handling capacity of the adaptor to avoid overheating. Keep it clean by wiping it with a dry cloth regularly. If you notice any damage, stop using it immediately and contact our customer service for help.