Wireless Doorbell Kit Remote Button Door Chime Over 500-feet Range With 36 Chimes 4 Adjustable Volume Easy Set Up LED Motion Sensor Light/Flashlight/Alarm Wireless doorbell is Operating range of over 500 feet. (1000 feet in open area). Remote transmitter button is rated IP33 weatherproof and acceptable for outdoor use. 36 different ring tones. Four levels of adjustable volume Blue Flashing Light Hint: When push the wireless doorbell transmitter button, it will flash blue light in the Blue Circle Area. The wireless doorbell receiver will flash blue circle light correspondingly. Battery included for remote transmitter, no batteries required for main receiver. CE, FCC, RoHS certified. Good helper: for the older or pragnants, in any special circumstances, they just press the transmitter, the other peoples in house can receive the SOS signal. Easy Installation: Plug-in receiver with 2-Pin US plug is suitable for an electrical outlet (AC); stick it to the wall by using the enclosed double-sided adhesive tapes. What You Get: 1X Remote Push Button Transmitter, 1X Plug-in Doorbell Receivers, 1 X Double-Sided Adhesive Tape, 1XA23 Battery, 1 X Instruction Manual and our fan-favorite 12-month warranty and friendly customer service.