Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si durable. Fine workmanship and perfect style. 2.4G Receiver Product Introduction: Frequency band: 2.4G Input voltage: 4.5V-5.5V Antenna connector: IPEX1 Type: ISM Firmware: for Aocoda 2400RX Receiver protocol: CRSF Telemetry power: 500mW 20dBm The appearance, color, and printing of the product from batch to batch, but this does not affect use. Material: PCB colour: Black Package Contents: 1 x 2.4G RX receiver 1 x T-shaped antenna 4pcs x 10cm connecting cable (red, black, white, yellow) 1 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.