Frequency band:1060-1380MHz Number of channels (Channel customer):9 Channel frequency:1080/1120/1160/1200/1240/1280/1320/1360/1258(MHz) Audio Sub-carrier:6.5MHz/6.0MHz Modulation type:FM<br><br>Frequency control:PLL Audio sub-carrier control: PLL Frequency Stability:±100KHz (Typ.) Frequency precision:+200KHz (Typ.) AN Ratio:-26±2dB Signal-to-noise ratio S/N (Fo ±3MHz):Greater than 70dBc Channel Carrier error:1dB Antenna Port Impedance:50 Ohms Input format:NTSC or PAL Video input level range:1V±0.2Vp-p type Audio input level range:1V±0.2Vp-p type Working temperature (net weight)g Temperature ):-10℃-+60℃ Input power supply:DC 7-28V Power output (Output voltage):DC7.28V:DC5V Due to different batches, there may be differences in product appearance and printed text, which will not affect use. Colour:As Shown Material:abs<br><br>Package Contents: 1 * Transmitter kit<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.