SURFOU Wireless Doorbell,Waterproof Doorbell Operating at 1300Ft with 55 Melodies 5 Volume Levels LED Flash Mute Mode Memory Function Wireless Doorbells for Home Classroom,2 Buttons 1 Receiver

SURFOU Wireless Doorbell,Waterproof Doorbell Operating at 1300Ft with 55 Melodies 5 Volume Levels LED Flash Mute Mode Memory Function Wireless Doorbells for Home Classroom,2 Buttons 1 Receiver

• Easy-to-Use Doorbell: Simply insert the receivers into the sockets and attach the transmitter to the front door with the included double-sided tape or screws and you're ready to use.
• Weaterproof and Durable: Ultra-low power consumption and 12V 23A alkaline battery gives a lifespan of up to 3 years.IP55 waterproof rating to withstand the harshest weather -30 °C to 70 °C (-22 °F to 158 °F).
• Ultra Large Range: Wireless doorbell: wireless range up to 1300FT/400m (unhindered area), strong and stable wireless signal ensures that you can hear the wireless doorbell clearly, even if you are several rooms away or are on another floor.
• 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.
• Used for homes, apartments, schools, villas, offices, warehouses, hotels, factories, hospitals, classroom, etc