PHYSEN Model CW Waterproof Wireless Doorbell kit with 2 Buttons and 3 Plugin Receivers，Operating at 1000 feet Long Range，4 Volume Levels and 52 Melodies Chimes，No Battery Required for Receiver，Black[Product Information]- 2 remote push buttons and 2 plug-in receivers for DIY your house and you can program each push button to a different tone so you can know which door is someone at.
- Waterproof transmitter:You can install the transmitter outside，The transparent compartment at the bottom of the transmitter allows your visitors to leave message to you. CE， FCC， RoHS certified.
- Remote Distance:Generally， it can work within 200~700 feet (1000 ft in open area) through the metal security door and wall.Wireless range may varies depending on construction and materials.please do not mount the push button on metal materials.
- 4 level volume adjustable with 52 charming melodies available， you will never be bored with terrible doorbell ringing again ， both perfect to look after the young and the old. This can be specially used as professional pager for the old. When an old man meets with an emergency，he just needs to slightly press the transmitter button， his family can receive his signal for help
- Flexible design according to your actual needs. You can choose the quantity of transmitter and receiver as you like， which can be freely matched with each other. No matter in the bedroom or on the balcony， you will never miss any visits from outside of your door
