AVANTEK Wireless Doorbell, D-3F Waterproof Chime Kit Operating at Over 1300 Feet with 52 Melodies, 5 Volume Levels & LED Flash

• 1300 FT / 400 M WIRELESS RANGE: This wireless doorbell set includes one plug-in receiver and one battery-powered transmitter; it won’t interfere with other devices in your home or your neighbors’ and ensures you never miss a visitor—even if you are a few rooms away or on another floor

• HIGH PERFORMANCE TRANSMITTER: Designed for ultra-low power consumption, the push button is powered by a lithium battery with up to a 3-year lifespan; its IP55 dustproof and waterproof build, along with a working temperature range of -4°F to 140°F, ensures reliable operation in all weather conditions

• 52 BEAUTIFUL CHIMES: The plug-in receiver equipped with a 40 mm stereo speaker for rich, crisp sound, easily select from 52 melodies using the Next or Previous button; features 5 adjustable volume levels, up to 115 dB—enjoy pleasant tones every time someone rings your door

• MEMORY FUNCTION: The receiver can remember your last set melody and volume level even after a power outage—no need to reset; designed for convenience and a seamless user experience

• EASY TO SET UP: Quickly install the push button using the included anchor plugs and screws or the adhesive pad; the doorbell system supports expansion with up to 2 transmitters and multiple plug-in receivers for wider coverage; NOTE: Metal components may interfere with the wireless signal and cause connection issues, please avoid installing the transmitter near metal surfaces