915 Receiver Product Introduction Frequency band:915MHZ Input voltage: 4.5V-5.5V Antenna connector: IPEX1 Type:ISM color: Black Material: PCB Overall dimensions: 20.0x12mm Firmware:Aocoda 900RX Receiver protocol:CRSF Telemetry power: 500mW20dBm The appearance, color, and printing of the product from batch to batch, but this does not affect use. Package Contents: 10 x 915RX receiver 10 x T-shaped antenna 40 x 10cm connecting cable (red, black, white, yellow) 10 x Transparent heat shrink tubing 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.