Aukey has sent over their, rather inexpensive, Wireless doorbell with a massive 1148ft operating range. Never miss a visitor or delivery again

36 unique tones to choose from, 4-level adjustable volume control
Fast and easy setup takes less than 10 minutes
IP44 Water-resistant for rainy days

Package Contents:AUKEY Wireless Doorbell Transmitter & Receiver, Double Adhesive Tape, User Manual, 24 Month Warranty