5 Modes Available: Not only serves as a motion sensor detect alert but also have more other functions.Welcome/ alarm/ doorbell/ colorful light/ night light mode, 5 in 1 automatic door chime. Color/ Red/ Blue/ Green, distinguish multiple entrances by different light colors. Melodies & Volume Adjustable: The receiver is a doorbell design with 36 ringtones and 5 welcomes doorbell sound for personal preferences 4 levels volume adjustable(Loud/ High/ Middle/ Low ) from 113~25dB.Color light/ Lighting mode is silent and has 4 levels brightness adjustable, great for people with hearing disabilities or there is sleeping baby in your house. Sensitive & Wide Wireless Range:with a Working Range up to 280m/918ft between the receiver and motion sensor. detection range 4-8m/13-26ft.