Features: 100% brand new and high quality Includes wireless sensor and wireless receiver It is good to place this unit on backyard, porch, garage, room, baseroom, patrol etc It detects movements and sends a signal to the receiver from up to 400 feet away Alerts you when someone enters your driveway, such as visitors, vehicles, intruders, animals or kids coming or going Advanced notice when someone or something enters before they surprise you. Scare them away The tune set on high itself can scare unwanted visitors away. Use it to monitor any area inside or outside, Its wireless so you can place it anywhere in the house and even take it from room to room. Will alert business owners, working in the back, to customers entering their store Cordless, just turn it on. Motion activated Wall mountable Low consumption Please don't exposure this unit to sun or rain. Thank you. Specifications: Transmitter (sensor): 9V battery, receiver: 2 x AA batteries (batteries are not included) Transmitter Size (L x W x H): Approx. 90mm x 60mm x 45mm Receiver Size (L x W x H): Approx. 90mm x 65mm x 30mm Receiver Switch Setting: High / low volume / off Material: Plastic Color: White Package includes: 1 x Wireless Detector Alarm (transmitter) 1 x Receiver 1 x Mounting Swivel