TS321 2.4GHz 500mW 8-CH Wireless AV Transmitter - Silver
Transmission frequency: 2370-2510MHz; 8 channels; Transmit power: 27dBm/500mW; Transmitting distance: > 4000m; Antenna interface: SMA (inner needle); AV Input: direct input analog audio and video signals; Supply voltage: 6.5-15V; Supply current: 300mA; Dimensions: 55 x 26 x 17mm; Host weight: 28g.