ODXA1037 Features: * Wireless clock * Transmits wireless RF synchronization signal every 20 seconds * Send RF time signal to an unlimited number of clocks * Field interfacing with most newer clock and sound systems * Internal clock and LCD display for clear and accurate readout * Wall mountable and battery backup for maintenance free use should power fail * Time source captured from GPS, NTP and internal Network can serve as an NTP time source * 5" Box top antenna no external antenna required * Sturdy steel case housing * Delivers dependable wireless synchronized clock signal in any vertical market * Easy installation and no FCC license required * Made in USA Specifications: * 128 channel 902 928 MHz frequency hopping technology Dimensions: * Overall dimensions: 5.25" H x 6.5" W x 2" D Warranty: * Manufacturer provides 1 year limited warranty