Mailbox Delivery Alert, Wireless

Mailbox Delivery Alert, Wireless, Polycarbonate, Length 4 In., Width 2-1/2 In., Depth 1 In., Y Tone, Decibels 75 or 65, Signal Output Y, Frequency Range 433 mhz, 120 V AC, .1 Amps, Cord Length 72 In., Door or Wall Mounting, Polycarbonate Housing Material, Operating Temp. 32 to 120 Degrees F, White and Black Color, 1000 ft. Line of Sight Range Coverage, FCC & IC Compliant Standards, Includes Transmitter, Receiver, Power Supply, Reed Switch 18 In. Lead, Lithium Battery, Mounting Hardware