SURFOU Wireless Doorbell Easy Installation Waterproof Door Bell with Adjustable Volume 55 Ringtones LED Indicator 1300Ft Range Wireless Doorbells for Home,1 Button 2 PlugIn Receivers,Black

Wireless Doorbell with
Door Sign: Additional door sign gives your visitors a clearer notice, the flashing LED-indicator on the bell radio and the transmitter serve as visual signals and are very friendly for the hearing impaired and the elderly.
Weatherproof Doorbell: IP55 dustproof and waterproof, which can withstand all kinds of severe weather conditions. Excelent materials can prevent itself from higher temperature, low temperature and interference working temperature between -30°C to 70°C (-22°F to 158°F). Ultra-low power consumption and 12V 23A alkaline battery gives a lifespan of up to 3 years.
Ultra Long Wireless Range: 1, 300FT reliable wireless signal coverage (Unobstructed space) anti interfering with your home electronics. Super remote control and penetrating power, signal stability. Up to 3 years of transmitter battery life to ensure a superior user experience.
55 Chimes and Memory Function: The ready-to-plug receiver has 55 ringtones (including
Christmas song: We wish you a Merry Christmas) and 5 adjustable volumes from silent to 110 dB. The built-in memory chip remembers your last setting without having to reset it after a power failure.
Extendable Door Bell System: With up to 64, 000 learning codes, you can add multiple receivers and transmitters of the same model to expand your door bell system. The doorbell is designed to aesthetically fit all types of homes and is also suitable for offices, stores, business and many more.