The latest upgrade 48ch receives RC832 parameters Compatible with older 8-channel transmitters Working frequency: 5.8GHz Transmission frequency point: 48 points Voltage input: 12V Operating current: 200mA maximum Antenna impedance: 50 Product interface: Inner pin (with inner hole antenna) Antenna gain: 2db Video impedance: 75 Video format: NTSC/PAL automatic Due to different batches, the appearance, color, and printed words of the product may be different, which does not affect the use. Colour:As Shown Material:Metal+Plastic Size:80x65x15mm Package Contents: 1 set x Kit 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.