Door Chime Waterproof Wireless Doorbell Chime 600 Feet Long Range, 5 Volume Levels, 58 Melodies Chimes, LED Flash Indicator for Home, Office, Shops, Classroom, Hospital;

BISTEE Wireless Doorbell:
IP55 Waterproof Doorbell Button, 1000 Feet Long Range, 4 Volume Levels, 52 Melodies Chimes and LED Flash Indicator

Feature:
Long Range Transmission
Operating range of over 500 feet. (1000 feet in open area).
52 Premium Chimes
The doorbell boasts an ample selection of 52 melodies and a wide volume range of 25-115 dB.
Blue LED Flashing Alert
When you press the button of transmitter, it will flash blue light adding the additional alert for the hearing impaired people.
And the receiver will ring and flash blue light when receiving signal.
Ultra Long Battery Life
Low usage: lasts up to 3 years. High usage: up to 1 year

Please read the instructions carefully before using Wireless Doorbell.

1. Hold Music Button over 3 seconds, it will trigger clean pairing function, so wrongly believed the product damage, but is not. We improved the manual and extended 3 seconds to 5 seconds.
2. The span of 4 levels volume is more wider, no longer concentrated in short interval, so that it can be more quieter or more louder.
3.The communication range is farther and the ability to penetrate the wall was enhanced.

Use in Out-Of-The-Box Mode (Work on default ringtone):
Step1: Insert the receiver into the socket.
Step2: Find a suitable location, stick the transmitter or fix it with a screw (Tips: remove the battery protective film), thus ok.

NOTE:
1. For multi-transmitters: Repeat Step1-2 to register another transmitters to this receiver. Thus all of transmitters have been registered to this receiver and trigger different tune.
2. For multi-receivers: Please set receiver one by one, to register each transmitter to each receiver.
3. Can not install transmitter on the metal, because built-in antenna can not close to metal.