Features: With ABS material and high brightness in surface,a fashionable doorbell for your house decoration. 85-260V wide voltage, sensitive and user-friendly, no wrong ringing. IP44 waterproof protection, durable to withstand various environments. Stable signal and super penetrability, the farthest unobstructed working range up to 200m. Suitable for apartments, high-rise residential buildings, hotels, factories, hospitals, and etc. Specification: Condition: 100% Brand New Material: ABS Plastic Color: Silver & Black(EU Plug), Gold & Black(US Plug) Optional Type: Silver & Black EU Plug, Gold & Black US Plug Receiver: Voltage: 85V-260V Working Temperature: -20-55°C Transmission Range: 200m(open), 10-80m(obstacle) Working Frequency: 433.92MHz Power Consumption: 0.25W Transmitter: Voltage: DC 12V 23A bttery powered Working Temperature: -20-65°C Transmission Range: 200m(open), 10-80m(obstacle) Working Frequency: 433.92MHz Volume: 0-100dB Power Consumption: < 20 ma(Working), 0 ma(Standby) Waterproof: IP44 Package Size: Approx. 11.5 * 8.5 * 7.5cm/4.5 * 3.3 * 2.9in Package Weight: Approx. 155g/5.4oz Package List: 1 * Receiver 1 * Transmitter 2 * Screw 1 * Tape 1 * User Manual 1、With ABS material and high brightness in surface,a fashionable doorbell for your house decoration. 2、85-260V wide voltage, sensitive and user-friendly, no wrong ringing. 3、IP44 waterproof protection, durable to withstand various environments. 4、Stable signal and super penetrability, the farthest unobstructed working range up to 200m. 5、Suitable for apartments, high-rise residential buildings, hotels, factories, hospitals, and etc.