❤【52 MELODIES & 4 VOLUME with BRIGHT LED INDICATOR】- Door chime receiver features 52 chimes and 4 level adjustable volume(25 dB to 110 dB) to meet your needs for different occasions. LED indicators are suitable for the elderly and hearing impaired
❤【SECURITY ALARM&EXPANSION SYSTEM】- Door/ window contact senor will detect every entry and send alarm warning to the receiver to better protect your place. You will hear the doorbell chime to remind you when someone opening your door/window or your pet coming home.Each door sensor or receiver can be expandable,you can use them with additional 20 pieces door sensors or receivers. For home, apartment, basement, warehouse, offices, garages, and more!
❤【UNIQUE & SIMPLE APPEARANCE DESIGN】- Mysterious black is not only low-key and beautiful but also stain-resistant; our door open chime adopts the optimal ABS material as well as high-quality speaker; working temperature ranges from -4 ℉ -140 ℉; withstands various harsh weather conditions.
❤【150M/ 600 FT in OPEN AREA RANGE】- Wireless door chime ensures you will never miss a visitor, even if you are a few rooms away or on another floor.❤【Note】- Please don't install it on the metal door that will effect the door sensor make signal and keep the distance is less than 0.4 inch between two door sensor.
❤ 【EASY TO INSTALL and QUALITY ASSURANCE 】- Plug the receiver into socket,tear off the tape behind door sensor chime then paste on the door. FCE, FCC, RoHS Certified ♥♥ 12 Months Extended Warranty & 45 Days Money Back ♥♥ . Feedback and Resolution within 24 hours for any inquiries and Complaints.