Battery Powered Smart Wireless Door Bell (300M)

Features:
High-frequency vibration body, penetrating ability up to 300 meters remote control in the open area.
Perfect for big and high floor houses, offices, factories, hotels, etc.
36 music ringtones optional,while the music is on, the LED flashes simultaneously.
4 kinds of volume adjustable, the sound is loud and clear.
Simple design, elegant, chic style.
IP44 level waterproof.
High quality ,Wireless, and easy installation.

Specifications:
Type: Wireless Doorbell
Power Source: AC,Battery
Power supply: 110V-220V-240V
Working Frequency: 433MHZ
Ring Tone: 36 Ring Tones
Certificate: CE,FCC,Rohs
OPERATING RANGE:300M IN OPEN AREA
RINGTONE:38 PCS
VOLUME:4 LEVELS
BATTERY TYPE:12V23A(battery is not contain-in product list)
POWER VOLTAGE:AC100-240V
TRANSMITTER SIZE:75*51*20MM
RECEIVER SIZE:95*65*24MM

How to setup the doorbell.
1. Pair the transmitter with the receiver:
Press and hold down the volume button on the receiver for about 5 seconds (the LED light is on), release the volume button and press the transmitter button immediately.
2. Change the music.
Press the music key to choose your favorite song,hold down the volume button for about 5 seconds, the LED lights on, release the volume button and press the transmitter button immediately.