Easy to install: Plug and play wireless doorbell, simply plug the receiver into a power outlet and attach the transmitter to the wall with accessories. The wireless waterproof outdoor doorbell contains 2 screws, double-sided tape, and a doorbell sticker. 300 Meters/985 Feet Wireless Range: The battery-operated wireless chime can reach up to 300 meters in a straight line, with excellent penetration capabilities that ensure perfect reception of visitor messages even when you are indoors. Adjustable Ringtones & Volume: Enjoy a selection of 60 unique ringtones, change music with a simple touch, and enjoy rich, clear sound from the stereo speaker with 5 volume levels. Press the song selection button for three seconds to browse music. UPGRADED & ENVIRONMENTALLY FRIENDLY: The 1-transmitter wireless chime made of recyclable ABS material is IP55 waterproof and ensures durability and reliability both indoors and outdoors. outdoors, while maintaining the same energy efficiency. Upgraded Digital