AGJ Wireless Doorbell White, Full Duplex Two Way Intercom Hand-Free Doorbell, 1000ft Range Waterproof, One Press to Talk for Home Office Older People

【High Quality Door Bell】Wireless intercom doorbell is super easy to use. Just press the outdoor transmitter CALL button once and press the indoor receiver ANSWER button once to start fully handfree two way communication. Outdoor transmitter can be screwed on or taped on the wall. Double side tape is provided. 【Paired Before Packing】This wireless intercom doorbell has been paired before packing so that it can be used once delivered. 【Durable Product】 This intercom doorbell can work in the temperature from -4°F to 140°F. It will make a voice notice when it is low battery. 【Long Range】 This Doorbell has a work range of 1000 feet with no obstacles. Indoor receiver has 4 different ringtones and 8 adjustable volumes. 【What is in the Package】 1 outdoor transmitter and 1 indoor receiver, double-side tape, transmitter case, screws, receiver charging stand, cables and plug, and user manual.