Wireless Motion Sensor Doorbell, Entry Door Chime, Ring Motion Detector, Infrared Sensor Motion Alarm with Transmitter Receiver (??? ??)

Specifications:Condition: 100% brand new and high quality Material: Plastic shell Receiver Working Voltage: 110V-240V Transmitter working voltage: 4.5V 3x AAA batteries(not included) Working range: Up to 70 meters Infrared sensing distance: 3-7 meters Receiver button control: Music source: 38 different songs Volume adjustment: high, middle, low(60~105dB) Voice: Can set it with light and voice / with light and no voice Plug: US Plug, EU Plug (optional)  (please note if it is fit for your country standard ) Pattern: 1 Transmitter & 2 Receiver, 1 Transmitter & 2 Receiver,                2 Transmitter & 1 Receiver, 2 Transmitter & 1 Receiver(optional) Transmitter: Approx. 80 * 59 * 45mm/3.15 * 2.32 * 1.77 inch Receiver: Approx. 76 * 80 * 33mm/2.99 * 3.15  * 1.30 inch Weight: Approx. 226-237g How to Use: 1. Place the correct batteries in the detector. 2. Make sure that the batteries have been put in the proper positions. 3. Mount the detector properly by the front door, window frame , driveway, walk path , backyard or anywhere you need. 4. Then switch on the receiver and adjust the volume to either high or low position. 5. Now the remote detective system is operating with the infrared detect technology. 6. Place the receiver in an easy to reach place. 7. When the detector senses motion , the receiver will make an audible sound & the LED light will flash. 8. Please wait for 30 seconds after switching on detective & receiver to activate.Package Included:1 x Transmitter 2 x Receiver 2 x Screws 2 x Expansion Tube 2 x AccessoriesOR2 x Transmitter 1 x Receiver 2 x Screws 2 x Expansion Tube 2 x Accessories