Specifications:

• 4 LED Indicator for Visual Alerts: Built-in LED indicator visually signals when sensor is triggered, with option to synchronize sound alerts, providing an extra layer of awareness. This wireless doorbell ringer also offers a vibration function that is an excellent choice when you need to be alerted without creating noise. Elevate your security game with motion sensor alarm and door chime. It's a solution for monitoring entrances, ensuring your property remains secure and well-protected.
• 17 Ringtones and 5 Volume Levels:Motion alarms detection chime has 17 ringtones and 5 adjustable volume levels for personal preferences. When the alert system receiver receives the signal from the motion sensor detector, the LED indicator light will flash. With an extensive selection of 17 distinct ringtones and 5 adjustable volume levels, you can set the perfect tone and volume for your specific needs. Whether you want a gentle chime or a loud alert, this doorbell has you covered.
• Effortless Setup and Battery or USB Powered:Powered by a convenient battery or USB Port, you can set up this wireless doorbell without need for complex wiring or professional help. It's a hassle-free solution that gets you up and running in no time. The motion detector sensor can be rotated 360 degrees from left to right and 180 degrees from top to bottom. So easy to install and can rotate to any position you need. (Infrared sensor needs 3pcs AAA batteries and receiver need 3pcs AA batteries)

Wireless Motion Sensor Door Chime, Motion Sensor Alarm, Ring Door Alarm Sensor, Ring Motion Sensor for Indoor Home Business Store Office School 17Ringtone 4LED Indicator Vibration Function,1 Receiver and 1 Sensor