Wireless Doorbell, TeckNet Waterproof Wireless Door Bell Chime Kit with LED Light, 1 Receiver and 1 Push Button, Operating at 820-feet Range with 32 Chimes Operating range of 820 feet. (1000 feet in open area). Remote transmitter button is rated IP33 weatherproof and acceptable for outdoor use. Easily plug receiver into an electrical outlet (no batteries required for main receiver). Blue LED flashes when someone is at the door 32 different ring tones. Four levels of adjustable volume from 25db to 85db, Memory function for sound and chime selection Push button can be fixed to the doorframe with screws, or attached using double-sided adhesive tapes Includes 1 battery operated transmitter and 1 Plug-in Receiver