Wireless Doorbell

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Product Feature ◆ Easy To Set Up: 2 transmitters included; can add more AVANTEK DB-1 receivers for increased coverage; simply fix the transmitter on the wall without any wiring; includes 4 screws, 4 anchors, 1 key and 2 double-sided adhesive pads ◆ 400 M/1,312 FT Ultra Long Wireless Range: Will not interfere with other equipment in your home or those of your neighbors; ensures you will never miss a visitor, even if you are a few rooms away or on another floor ◆ Tailor Your Transmitter: 40 mm stereo speaker delivers rich and crisp sound; 52 melodies and 5 adjustable volume levels with a maximum setting of 115 dB; set a different ring tone for each transmitter so that you know exactly which doorbell has been rung ◆ High Performance: The transmitter has ultra-low power consumption; uses CR2032 lithium battery that boasts 3-year maximum lifespan; IP55 dustproof and waterproof rating; works between -4 °F to 140 °F; withstands various harsh weather conditions ◆ Memory Function: Remembers your last melody and volume level after a power outage; no need to reset to your previous settings; convenient and easy-to-use design for an enhanced user experience Product PhotoWireless Doorbell website:http://www.smoke-detector.com/others-electric-products/wireless-doorbell/