Wireless Digital Doorbell Long Range Control Home Security Decor US EU UK Plug

Features : Long Range: Operating range up to 1,000ft/300m in open area ensures you to hear the bell and answer the door in time. Multiple Volume Option - There are 28 different ring tones with 4 levels of adjustable volume from 20dB to 110dB. Flashing light with audio alert indicators which is easy for people including the hearing impaired to notice. Built-in LED Indicator - Our wireless doorbell receivers and transmitters feature LED indicators that creates visual alerts for the hearing impaired. Wireless Plug-in Receiver - The portable wireless plug-in receiver plugs into any standard outlet. MEMORY FUNCTION: Preserves your last-set 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. Specification : Indoor Receiver Voltage range: AC 110V-220V Operating temperature: -10 - 55 Size: Approx. 96 * 62 * 32mm / 3.78 * 2.44 * 1.26inch Outdoor Transmitter Voltage range: DC12V 23A Alkaline batteries * 1 (Built-in) Operating temperature: -20 - 65 Size: Approx. 75x43x17mm / 2.95x1.69x0.67inch Plug Type: US, UK,EU (Optional) Color: Black, White (Optional) Package includeds : 1 x Indoor receiver 1 x Outdoor transmitter 2 x Screw 1 x Double-sided adhesive tape Details pictures :