Easy to Use: This doorbell camera transformer can be easily disassembled and assembled, and can be set up in minutes. The power supply can be plugged directly into your doorbell, just connect the power cord to the two rings on the back of the doorbell, no need to connect new line or other devices. Applicable to: Compatible with all versions of Ring Doorbell, other doorbell cameras or ringtones, which can extend battery working time, reduce power and provide enough power. Convenient Design: Our doorbell power adapter features overload protection, overcurrent protection, anti-start shock, anti-electronic interference, and is not easy to damage. The adapter cable has a length of 10 m (393inch), so you can easily plug it into the socket inside and outside without worrying about the distance. High Quality Materials: Made of environmentally friendly materials, with good conductivity, transmission stability and durability, the doorbell transformer is safe and when used, bringing convenience