Perfect for will-call counters, warehouse doors, and waiting areas, this wireless chime transmits to a commercial bell up to 2500' or 1/2 mile away. A wireless warehouse doorbell, the warehouse door buzzer produces a soft ring and can be placed within easy reach of the customer in any commercial space or office environment. The push-button switch features built-in audio volume control. The commercial door chime plugs into an ordinary electrical outlet and will play one of twelve different tunes selected in the chime kit. This complete commercial warehouse doorbell kit includes everything you need to easily install a warehouse door buzzer.