Refoss Smart Wireless Doorbell with 2 Remote Buttons Transmitters (Batteries Provided) and 1 Plugin Receiver Operating at 500-feet Range with 36 Melodies， CD Quality Sound and LED Flash， White[Product Information]- LONG RANGE UP TO 500ft /150m - No matter you are in the garden， kitchen or upstairs， you will always know when someone is calling from outside. Refoss doorbell comes with very stable wireless connection. FCC and CE certified.
- SUPER EASY INSTALLATION: Get this doorbell up and running within minutes， NO wiring required， absolutely hassle free. It is extremely easy to set up and install， so you can begin using it almost instantly. Moreover， the doorbell is pre-configured to pair with TWO transmitters for even more convenience.
- Get Bored with Repeating "Ding Dong" Ringtone? Now experience the new 5 levels of adjustable volume from 25db-110db [Much Louder] and 36 bell tones!
- DURABLE FOR YEARS: Let the RAIN， DUST， and DIRT sweep through. IP44 Waterproof transmitter is made from high quality silicone and can withstand any bad environment.
- EXPANDABLE & DIY - You can DIY to meet your requirement by pairing additional receivers and push buttons. 1 Receiver can pair up to 4 push buttons. Each push button can pair unlimited receivers.
