ER3092X Features Digital car TV/FM antenna Efficiently receive TV/FM radio signal Stable performance， easy to setup Light and small General Specs Brand & Model CA-0466 FM29 Voltage DC12V Power Supply 60-100mAh Operating Frequency  48-860MHz Gain 20±3dB Nise factor ≤7dB Output impedance 75Ω Output standing wave ≤3 Output line length 2M Working temp. -20-70℃  Package Details Weight: 62.06 g Size: 25.5*6.5*3.5 cm