Bakeey 2 Doorbell 1 Receiver US Plug IPX4 Wireless Door Bell

Features: 1. Long-distance signal transmission, 200m penetrating signal transmission, suitable for general household and courtyard use, sensitive to receiving, and stable signal. 2. 38 doorbell sound selection, 4th gear to adjust the volume. 3. Easy to set up: The wireless doorbell uses electronic signal transmission without the need for opening wiring. Specification: Doorbell: Power Supply: Battery (not included) Size: 78x45x20mm Receiver: Plug: US/EU Transmission Distance: 200m Frequency: 433MHz0.5Mhz Size: 62x62x20mm Package Included: 2 x Doorbell 1 x Receiver US Plug