• Transmitter: ultra-low power consumption; uses CR2032 high-performance lithium battery that boasts 3 years maximum life span; IP55 dust-resistant and waterproof rating; Operates between -4°F to 140°F; Withstands various adverse weather conditions
• 52 stereo speaker for melodious sound Chimes: 40mm delivers rich and crisp sound; 5 adjustable volume levels with a maximum volume of 115 dB; Press the Next or Previous button to easily choose from 52 melodies and you will enjoy pleasant tunes when someone rings at your door
• Wireless range up to 400m/1,312-ft: includes 1 plug-in receiver; won't interfere with other equipment in your home or those of your neighbors; ensures that you'll never miss any visitors, even if they are several rooms away
• Memory function: retains your last-set melody and volume level after a power outage; no need to set your previous settings; Convenient and easy-to-use design for a better user experience
• Easy to install: includes 2 screws, 2 anchors, 1 key and 1 adhesive patch for easy installation of the transmitter

Tags: Wireless bell, doorbell