

With strong penetration, you will never miss any visitor!

Choose SURFOU wireless doorbell to make your life better!
How to set the ringtone?
1. Short Press the Backward or Forward Button to select your favorite music. 2. Long Press the Volume Button for 8s, until it makes a One Ding sound with LED flash. 3. Press the button within 8s, then it will make a Two Ding sound with LED flash.
How to change the battery?
Replacing the transmitter battery is a very simple procedure. Simply insert the small screwdriver supplied through the small opening at the bottom of the transmitter in a 45° and pry it open.
How do you adjust the volume?
Press the volume button on the receiver to adjust volume, there are 5 levels in total, the default is the maximum sound, press once to change one level cycle in turn.
Are these doorbells waterproof?
Normally, water resistance is no problem at all.IP55 dust proof and waterproof protection. Working temperature:-22 °F -158°F.
Is this doorbell easy to install?
There are two simple installation methods:
Method 1. stick the button on the exterior wall or door frame with the attached double-sided tape.
Method 2. fix the button with the provided screws.

With strong penetration, you will never miss any visitor!

Choose SURFOU wireless doorbell to make your life better!
How to set the ringtone?
1. Short Press the Backward or Forward Button to select your favorite music. 2. Long Press the Volume Button for 8s, until it makes a One Ding sound with LED flash. 3. Press the button within 8s, then it will make a Two Ding sound with LED flash.
How to change the battery?
Replacing the transmitter battery is a very simple procedure. Simply insert the small screwdriver supplied through the small opening at the bottom of the transmitter in a 45° and pry it open.
How do you adjust the volume?
Press the volume button on the receiver to adjust volume, there are 5 levels in total, the default is the maximum sound, press once to change one level cycle in turn.
Are these doorbells waterproof?
Normally, water resistance is no problem at all.IP55 dust proof and waterproof protection. Working temperature:-22 °F -158°F.
Is this doorbell easy to install?
There are two simple installation methods:
Method 1. stick the button on the exterior wall or door frame with the attached double-sided tape.
Method 2. fix the button with the provided screws.


















































