Pll Synthesized FM Transmitterf - Audio Input : Left and Right (MAX 2Vrms) - Power: DC + 12 Volt, Ground - ANT : To radio (FM) - Current consumption : 400mA - Audio Input sensitivity : 1.0Vrms - RCA Stereo Input - Dip-Switch Adjustable Frequency - Transmission Freq.Range 87.7-88.9 MHz (200KHz/Step) - Operating Voltage 11V-16VDC - Dimensions (W x H x D) : 85 x 75 x 28