If there no one presses the button, but a bell will ring，What should I do？

First, check if the battery is depleted, replace the CR2032 battery, and then reset and paired doorbell.

Can I add additional doorbells and buttons to my original combination？

Yeah,Add a button,select music on the original receiver and pairing it. Add a receiver, select music in the new receiver, and pair it with the original button.

How to set different music for the front and back door?

Press the music button select the music ringtone A(B), long press the volume and music buttons for 5 seconds, press the front (back) door button, the receiver will respond and sound, then press the front (back) door button again.

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Description

🔔 Elevate your entry game with wireless freedom and style!

PLUG PLAY SIMPLICITY - Pre-paired receivers and buttons mean zero wiring and installation in under 1 minute—effortless convenience for your busy lifestyle.
PERSONALIZED SOUNDSCAPE - Choose from 58 unique chimes and 5 volume levels to match your mood or setting—because your doorbell should be as dynamic as you are.
UNMATCHED WIRELESS REACH - 1300ft signal range with FM tech ensures your doorbell never misses a visitor, even in large homes or offices.
BUILT TO BRAVE THE ELEMENTS - IP55 waterproof and fire-resistant ABS housing keeps your doorbell performing flawlessly from -4°F to 140°F—rain or shine, indoors or out.
ENERGY SMART LONG LASTING - Battery life up to 3 years with zero power drain when idle, plus memory function to retain your settings—smart tech that respects your time and energy.

The SECRUI Wireless Doorbell M520+F55 offers a robust 1300ft wireless range with FM signal technology, 58 customizable chimes, and adjustable volume up to 120dB. Designed for quick, no-wiring installation, it includes 3 plug-in receivers and 2 push buttons. Built with durable, fire-resistant ABS and IP55 waterproof rating, it withstands extreme temperatures from -4°F to 140°F. Energy-efficient with up to 3 years battery life and memory function, this doorbell combines cutting-edge tech with sleek industrial design for modern homes and offices.

Specifications

Manufacturer	SECRUI
Part Number	M520+F55
Item Weight	9.5 ounces
Product Dimensions	8.15 x 2.83 x 2.32 inches
Item model number	M520+F55
Batteries	1 CR2032 batteries required. (included)
Is Discontinued By Manufacturer	No
Size	3 receivers 2 push buttons
Color	Black
Material	ABS
Pattern	Simple design
Shape	Square
Power Source	AC & Battery-Powered
Voltage	120 Volts
Installation Method	Self-Adhesive & Screw-In
Item Package Quantity	1
Temperature Range	-4-140 Degrees Fahrenheit
Sound Level	120 dB
Type of Bulb	LED
Performance Description	MEMORY FUNCTION ENERGY-SAYING LED INDICATOR
Accessory Connection Type	Wireless
Plug Format	A- US style
Switch Style	Push button
Special Features	Adjustable Volume Optional Ringtone
Usage	Wireless Doorbells for Home / Classroom Doorbell
Included Components	‎‎2× Transmitter (battery included), 3 × Plug-in receiver, 2 × Adhesive tape, 4 × Screw, 4 × Anchor, 1 × User manual
Batteries Included?	Yes
Batteries Required?	Yes
Battery Cell Type	Lithium Manganese Dioxide
Description Pile	CR2032
Average Battery Life	3 years

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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