ODXA1039 Features: * Wireless clock * Does not lose time during power outages * Send RF time signal to an unlimited number of clocks * Synchronized entire facility including networked computers to the same time * Time source captured from NTP or optional GPS * No FCC site license needed * Durable ABS frame and shatterproof polycarbonate lenses with sturdy steel case housing * Made in USA Includes: * Includes 5 digital 4" 4 digit wireless LCD clocks Specifications: * 128 channel 902-928MHz frequency hopping technology * Maintenance free 3.6v Lithium "C" batteries for long life * Up to 250,000 sq. ft. coverage (more upon request) Dimensions: * Overall dimensions: 2" H x 11.25" W x 4.75" D Warranty: * Manufacturer provides 3 years limited warranty and 30 days money back guarantee