Specifications: - Color: White - Plug-in Receiver Working Voltage: AC 110V (US) - Transmitter Battery: 12V 23A Alkaline Battery - Rating of Waterproof: IP44 - Selectable Melodies: 52 Pieces - Volume Range: 30 110 dB, 4 Levels - Working Temperature: -30c to 70c
Package Includes: - 1x Door Chime (AC Receiver) - 1x Push Button (Transmitter) - 1x User Manual - 1x 3M double-sided adhesive sticker - 2x screw and expansion - 1x mini screwdriver

• The door chimes can work within 200 700 feet through the metal security doors and walls
• 52 pieces of selectable ring tones; 4 levels of adjustable volume from 30dB to 110dB
• Remote transmitter is rated IP44 Waterproof and acceptable for outdoor use,Easy Installation without wiring. Plug receiver into an electrical outlet (AC 110V US)
• Mount transmitter through double-sided adhesive tape or included screws / anchors. Low power consumption,Easy to add extra transmitter/Receivers. Each receiver works with up to 10 transmitters for added security and convenience
• Transmitter designed with a message box. You can leave a message to your visitors or they can leave a note to you,The beautiful tone can also be used as a WAKING ALARM for the babies, we are waiting for you to find more features, and share with us

The door chimes can work within 200 700 feet through the metal security doors and wallsFORRINX