Receiver plugs into any standard 120 VAC outletOperates up to 500 feet from transmitterHas a low and high volume adjustment on receiverName: STI STI-3353 Wireless Chime Receiver, Safety Technology International, Inc, Safety Technology InternationalCategory: Safety Technology International, Intrusion, Security Sirens & Strobes, Doorbells & ChimesUPC Code: 662950002697Country of Origin: China. Country of origin is subject to change.
