Key features

• •SAFE- With UL Certified. This battery charger can solve "Low batter" problem of your Video Doorbell, QIBOX power adapter have overcurrent protection, overvoltage protection, overload protection, overheat protection, and short-circuit protection. Enable you to charge your devices safely.
• •CONTINUOUS CHARGING FOR ALL RING DOORBELLS- This power adapter compatible with Ring Video Doorbell Pro/ Ring Video Doorbell 2/Ring Wi-Fi Enabled Video Doorbell/Zmodo Smart Greet Wi-Fi video Doorbell/Nest Hello Video Doorbell. You can now let your video doorbell operate continuously without the need to remove it to change its battery, with no uninterrupted operation and viewing influence.
• •EASY TO INSTALL& LONG 20FT CABLE- No resistor needed, assemble along the wall from your outlet to the ring doorbell, just attach the two wires to the back of the ring on either position, no polarity. Easy installation and can be set up in minutes. With an AC output of 18V/500mA and super long 20ft (6M) cable, no worries about the distance between the socket to the doorbell.
• •NO MORE HASSLE- QIBOX doorbell power supply can keep your device constantly powered. With this installed, you will have motion alerts and do a lot of ¡°live views¡± on Ring doorbell without the fear of draining the battery quicker. You don't ever have to worry about Ring doorbell going dead anymore!
• •PACKAGE & BEST CUSTOMRT SERVICE - Power supply adapter ONLY, the video doorbell device is not included. If there're any issues or further questions for our power adapter, please do not hesitate to contact us via Amazon marketplace emails. We are always here to provide solution and help you out.