GHz Wireless 4 Ch A/V Transmitter BOX HIGH POWER 3 Watt (export only) Frequency 2413,2432,2451,2470 Mhz TX Power 3W Impedance 50 Ohm Typical Video Input 1V p-p Composite Video Audio Input 2V p-p(max) Distance 1000m (Open Area) Consumption 530mA / DC12V Dimension 48x61x35 * Pictures and specifications are subject to change without prior notice