Techly Wireless Doorbell up to 300m with Lithium Battery and Remote Control I-BELL-RING02

Wireless Doorbell with Lithium Battery and Remote Control, 52 classical melodies/4 volume levels (30 - 110dB), White - Wireless Doorbell consists of a transmitter and a receiver
- Wireless transmission in the open field that reaches up to 300 m
- Ideal for use where there are considerable distances between the transmitter and receiver, for example, between office and warehouse, between two private homes, between reception and offices, etc.
- Allows the use of two or more transmitters at the same time, such as one for the front door and one for the back door. The signal of a bell never interfere with that of the other and you can set a different tone for each port, so you know what they're playing.
- It can be synchronized with a maximum of 52 different remotes
- Easy to install, the kit does not require any electrical connection, because it operates via radio
- 52 different ring tones and 4 degrees of volume adjustment
- Secure transmission that excludes radio interference
- Receiver equipped with lithium battery, which keeps the default settings and ensures the operation of the bell for 24 hours, even in the absence of electricity