This is a diversity receiver with two RX modules. Note: AKK Diversity RX doesn #39;t come with cover to fit with your goggles AKK Diversity RX for Fatshark Specifications: Frequency: 5.8GHz Sensitivity: -93 to -95dbi Number of CH: 48 Channels Antenna connector: SMA Female Input voltage: 5V Current Consumption: 5V @ 380mA-400mA Compatible with FatShark goggles Built-in Low Power Buzzer