store owners during the day, night anti-theft protection, L door blade / welcome / doorbell / alarm / colorful light / 5 in 1 multi-function lighting Transmission range up to 280 m in open space 8 chord music chip, horn 40mm, 36 chime melodies Remember your last melody and volume set when you turn it off Multi-color LED lights, adjustable brightness, different inputs by different colors 4 adjustable volume levels (loud/loud/medium/low) from 113 to 25 dB Ideal for Announcing Visitors. 5 welcome languages to choose from. As soon as someone approaches your front door to sound an alarm, the sound you selected will be sent. Provide security to your home. When you sleep dead, you will be woken up when someone is near the motion sensor. At night, it can be activated in alarm mode to protect your property. Never Miss Visitors. There are 36 ringtones and 4 adjustable volume levels for a volume range of 25 to 113 dB, ideal for people with hearing impairments. Multiple ringtones can be set for different receivers, so you can see your visitor at which door. Silent Colorful Lights. If you don't want to be disturbed, you can adjust the color lighting mode. When children are sleeping at home or are misunderstanding, they can recognize someone is coming by seeing the colorful light in silent mode. Dog Doorbell Sensor mounted above your doors. When the cat or dog comes back from the side of the road, it will remind you to open the door. Since then, it no longer had to wait in the cold or in the rain. Security and Protection With this wireless passage detector, you can be notified when your children, your pet or the elderly leave the house. Old Autumn Warning A rescue for your elderly parents. If your parent tries to slide out, they may fall before anyone remembers. So the receiver can be mounted in your room to alert you. Night Light Mode In this mode, the soft light will immediately remind you when your family comes back after overtime. To protect yourself against theft, you can choose the night light instead of the loud alarm such as an immediate alarm.