Avantek Wireless doorbell with two transmitters

This wireless doorbell offers easy setup without wiring, with two transmitters (push buttons) included in the package. Screws, plugs, and double-sided adhesive pads are also provided for installation. With a wireless range of 400 meters, the transmission is not interfered with by other devices. The doorbell features 52 selectable ringtones and 5 adjustable volume levels of up to 115 dB. The transmitters have a lifespan of up to 3 years thanks to their low power consumption and the CR2032 lithium battery. They are dust and waterproof according to IP55 and operate in a temperature range of -20 to 60 degrees. The ringtone and volume settings are retained even after a power outage. The doorbell is expandable with multiple receivers and allows for individual ringtones for each transmitter. The doorbell is compatible with other Avantek doorbell systems.