• DOORBELL POWER - 18V universal US power cable powers popular smart doorbells, plugs into your standard 110 v/120 v outlet and converts to 18 volt 500 ma AC current
• 26.2ft EXTENSION CABLE - compatible with smart doorbells ：Ring Video Doorbell, Ring Video Doorbell 2 & Ring Video Doorbell Pro,Nest Skybell etc. Note: the brand mentioned above is only for demonstrating compatibility
• EASY TO INSTALL - Assemble along the wall from your outlet to the doorbell without the existing doorbell or wiring. Easy installation and be able to set up in minutes
• QUALITY MATERIAL - the product is made of pure copper wire core,the principle is based on electromagnetic induction and keeps your doorbell device working for a long time
• NOTE - Before purchasing, please confirm that the voltage and current required by the doorbell or thermostat match the power supply. Please connect the doorbell before connecting the power supply, and be careful not to let the two cables connected together cause short circuit