This is the Tactic FPV-T6 5.8GHz 600mW Video Transmitter with Accessories.

FEATURES
For use with the Tactic FPV-RM1 7" 1024x600 Monitor, and the
FPV-C1 600TVL FPV Video Camera
Approximate transmitting range of up to 1640 yards (1500m) if
completely unobstructed
External RP-SMA antenna
Power and video Y-harness
Camera adapter with USB Mini-B plug
Battery adapter
One year limited warranty through Tactic beginning at date of
purchase

INCLUDES
Tactic FPV-T6 5.8GHz 600mW Tx/Antenna with Y-Harness, Camera Adapter
with USB Mini-B Plug and Battery Adapter

SPECIFICATIONS
Channels: 32
Frequencies: 5.645 - 5.945GHz
Transmitting Range: 1640 yards (1500m) completely unobstructed
Antenna Gain: 3dBi
Output Power: 600mW
Input Power: 7.4 - 22.2V (2-6S LiPo)
Operating Current: 180mA at 12V DC
Dimensions: 1.4 x 0.9 x 0.3" (35 x 22 x 8mm) w/o heat sink or antenna
connection
Weight: 0.34oz (9.5g) without antenna or heat sink