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:

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Description

🔔 Ring in the Future of Home Security!

EFFORTLESS SETUP - Install in under 30 seconds with no tools required—just plug and play!
LONG LASTING POWER - Enjoy up to 3 years of battery life with low power consumption, keeping you worry-free.
UNMATCHED COVERAGE - Experience a staggering 1300 feet of wireless range, ensuring you never miss a visitor.
CUSTOMIZABLE ALERTS - Choose from 55 unique chimes and adjust the volume to suit your environment with 5 levels.
WEATHERPROOF DESIGN - Built to withstand the elements with an IP55 rating, perfect for any climate.

The SURFOU Wireless Doorbell features an impressive 1300 ft range, 55 chimes, and 5 volume levels, all housed in a waterproof design. With easy installation and a long-lasting battery, it's the perfect addition to any home or classroom.

Specifications

Manufacturer	SURFOU
Part Number	1
Item Weight	10 ounces
Product Dimensions	2 x 2 x 2 inches
Item model number	N128
Batteries	1 12V batteries required. (included)
Is Discontinued By Manufacturer	No
Size	1 Button + 3 Receivers
Color	black
Style	3 Receivers + 1 Buttons
Power Source	Battery Powered
Installation Method	Adhesive or screw-in (transmitter)
Item Package Quantity	1
Sound Level	110 dB
Coverage	‎Ultra-long 1300 feet wireless coverage
Mounting Type	1
Plug Format	A- US style
Special Features	Waterproof
Included Components	3 x plug-in receivers, 1 x push button, 1 x door sign, 1 x 12V23A battery, 1 x screwdriver, 2 x dowels, 2 x double-sided adhesive tape, 1 x instruction manual
Batteries Included?	Yes
Batteries Required?	Yes
Battery Cell Type	Alkaline
Average Battery Life	3 years

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