?Brand: N/AModel: YF-0155Color: WhiteMaterial: PlasticQuantity: 1Specification Detector Battery: 1*9V 6F-22 battery， not includedReceiver Battery: 2*AA battery， not includedDetector Voltage: DC9VReceiver Voltage: DC3VTransmitting frequency: 315MHZTransmitting Range: 100 metersInfrared Sensing Distance: 3-7 metersMusic Ringtone: Classic song (For Elise)FunctionsIncludes wireless sensor and wireless receiver No wiring required， just turn it on Just mount the detector properly by the front door， window frame， driveway， walkpath， backyard or anywhere you need; and place the receiver inside your home. It detects movements and sends a signal to the receiver from up to 100 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 Simple to install and easy to use.Packing list:1 x Detector1 x Receiver1 x Installation Accessories1 x English User's Manual<img src="http://112.74.112.28/down/products/446164/446164_000.jpg">