Home House 4 Volume Wireless Doorbell Chime 2 Plugin Receiver with 1 Transmitter

Specifications: Receiver: Working Voltage: AC 90~250V Power Consumption: 10mW Sensitivity: -110dbm Volume: 10-110db Working Frequency: 433.92Mhz280Khz Transmit Power: 0dbm Color:White Quantity:2pcs Doorbells: Power Consumption: 0.01mW Modulation mode:ASK/OOK Battery:12V/23V alkaline battery Working Frequency: 433.92Mhz280Khz Transmit Power: 0dbm Color:White Quantity:1pcs Features: -Wireless door bell -With alarm function -Waterproof -Stylish look and light touch design. -Easy to install. -Ultra-low power design, power saving and long-lasting use. -52 polyphonic ringtones. -4-level optional volume adjustment. -900ft maxium wireless range1in the open air. -Push buttons max.16 Package includes: 2 x Receiver 1 x Doorbells 1x User Manual 1 x Mounting hardware