This is a Briidea Wireless Mail Alert System, designed for both commercial and residential use. It is a small mailbox alarm powered by batteries, with a locking feature and weather-resistant properties. The unit is wall-mounted and includes a wireless range of 500 ft, along with LED light flashing and sound alerts. The product dimensions are 2"L x 1"W x 1"H, and it weighs 8.4 ounces.
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