Specifications: Model: SpeedyBee Nano 2.4GHz Name: RX ExpressLRS Receiver Frequency: 2.4G Antenna: T-antenna (54*78mm,0.6g) Chip: SX1280+ESP8285 Power: 100mW Input voltage: 5V Antenna connector: IPEX1 Dimension: 10.4mm x 18.4mm Default Firmware: SpeedyBee Nano 2.4GHz RX 3.3.1 Package Included: 1 x ELRS Receiver 1 x T antenna 1 x Pin Header 1x4 1 x Connection wires 1 x Spare shrink tube