Wireless Motion Sensor: Remote transmission, 280 meters in the open place, suitable for more places 5 Model Options: Welcome mode/ doorbell mode/ alarm mode/ color light mode/ night light mode, sufficiently meet your demand, Widely Application: Not only perfect for home security, but also for shops, hotels, offices and factories. Home Security Alarm: Independent alarm horn,maximum 113dB, can effectively scare the thieves and intruders away, Power Supply: The Receiver uses AA battery(not included) or USB 2.0 micro-B(not included), motion sensor uses AAA battery(not included) or USB 2.0 micro-B(not included) Package: ( battery not included) 1x Infrared Curtain (PIR Motion Sensor) 1x Alarm Bell (Receiver) 1x Desktop Base 1x Suspension Bracket Double-Sided Adhesive Tapes 1x User Manual.
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