100% brand new<br />Includes wireless sensor and wireless receiver<br />Just place the sensor at the entrance to your driveway and the receiver inside your home. <br />It detects movements and sends a signal to the receiver from up to 400 feet away<br />Alerts you when someone enters your driveway， such as visitors， vehicles， intruders， animals or kids coming or going!<br />Advanced notice when someone or something enters before they surprise you.<br />Scare them away! The chime set on high itself can scare unwanted visitors away.<br />Use it to monitor any area inside or outside， It’s wireless so you can place it anywhere in the house and even take it from room to room.<br />Will alert business owners， working in the back， to customers entering their store<br />No wiring required， just turn it on.<br />Motion activated<br />Wall mountable<br />Low consumption<br />Simply attach the sensor to the fence or mailbox pole for long driveways， or directly above garage doors for shorter driveways，it installs in seconds， all you need is a screwdriver.<br />Send audible chime sound， alerting you that somebody is approaching (Note: only by the sound of a music type "for Alice"， has not changed )<br /> <br />Material: Plastic<br />Color: White<br />Receiver requires 2x AA batteries， transmitter requires 1x 9V battery (batteries not included)<br />Working Range: Up to 100 meters / 328 feet between receiver and transmitter<br />Transmitter Size (L x W x H): Approx. 3.5 x 2.4 x 1.8 inch<br />Receiver Size (L x W x H): Approx. 3.5 x 2.6 x 1 inch<br />Receiver Switch Setting: High / low volume / off<br />1 x Infrared sensor <br />1 x Receiver <br />1 set x Bracket <br />1 x English user manual<br />In original package<br /><img src="http://img6.eachbuyer.com/x22/p96/bt212_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x22/p96/bt212_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x22/p96/bt212_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x22/p96/bt212_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x22/p96/bt212_5.jpg" />