RL-3915 Melody rings doorbell 

RL-3915 Melody rings doorbell enables people to communicate in areas where Gates  are installed away from the house, so no matter how much you bang the gate the owner won't hear you, so installing the door bell helps you receive an alert when there is someone at the gate. 

Easy way to communicate

Though it does not transfer voice RL-3915 doorbell help people to communicate, it can be installed outside the gate for visitors to ring, it can also be installed in places where people send things through rifts, you ring when something is on transit to make sure the other person wait for it. specs

• 60M  Remote control .
• waterproof transmitter
• 16 melodies to choose from
• adjustable volume
• 60 to 120 meters signal
• Easy installation procedures