Speedy Bee 5.8 GHz MMCX-90 Degree Antenna V2.

Frequency: The "5.8 GHz" in the product name indicates the operating frequency of the antenna. This is a common frequency for FPV systems in the radio control and drone racing community.

Connector Type: "MMCX" refers to the type of connector used on the antenna. MMCX connectors are a common choice for FPV equipment due to their small size and secure connection.

Polarization: Antennas can be polarized either linearly (vertical or horizontal) or circularly (right-hand or left-hand). Circular polarization is often preferred for FPV applications, as it helps to minimize signal interference and multi-path reflections.

Beam Angle: The "90°" in the product name suggests that this antenna may have a 90-degree beam angle. The beam angle determines the coverage area and directionality of the antenna's signal transmission and reception.

Gain: Antennas can have different levels of gain, which affects their performance in terms of signal range and directionality. Higher gain antennas can provide longer range but may have a narrower beam.

Durability and Build Quality: Antennas used in FPV and drone racing are often exposed to outdoor conditions and potential crashes. Therefore, the build quality and durability of the antenna are essential factors to consider.

Compatibility: Make sure the antenna is compatible with your FPV equipment, such as video transmitters and receivers, and that it uses the correct connector type and frequency band.