About Wireless Doorbell with 2 Receivers, M523x2+F55 Waterproof 1000ft Long Range
When you press the doorbell button, both receivers will be activated at the same time. Mute mode: 5 levels of adjustable volumes from 0 to 120 dB include mute modes. 3-Year Battery Life Ultra-low power consumption, the push button transmitter uses a CR2032 lithium battery which has an ultra-long lifespan of up to 3 years. Waterproof rating: IP55, which is higher than ordinary doors, to ensure perfect usage on rainy days. LED flashes feature is helpful for those with a severe hearing impairment. Easy installation 2 simple installation methods to choose from: fasten the push button to your door with the double-sided adhesive tapes or fix it with screws supplied. Waterproof, expandable wireless range up to 1000 ft.
