48 Channel,6 Band Wireless Receiver. Signal and frequency band exchange of two buttons. Two digital display,Locate the current receiving frequency in time; When de-energized,Stores the last displayed channel and frequency. Bidirectional video and audio signal output(Video:PAL,NTSC,CECAM; Audio:6.5MHz) The dual-antenna receiver, Make your signal more stable. Product Name:RD945 The receiver Frequency:ISM 5.8GHz 48CH Sensitivity:-90dBm Power consumption:280mA/12V Power supply voltage:DC 7-24V RFInput:50Ohm Video output:1.0Vp_p75ohm Audio output:1.0Vp_p10Kohm Video output:2 Road The antenna in the form:The Receiving End RP-SMA jack outer screw and interior needle The antenna terminal RP-SMA plug In the screw hole Colour:Black Material:Plastic+Metal Size:About 80x65x15mm Package Contents: 5 x The receiver 5 x The power supply line 5 x Video line 10 x Antenna 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.