DIY Kit: Long Range 2.4 GHz Transceiver Module with External Antenna, Arduino CompatibleDescription:Module Type: Transceiver (Both Transmitter and Receiver All-In-One)Antenna Type: External SMA with 3 Positions: Straight, 45 Degree or 90 Degree AngleWorking Range: up to 3609 FeetConnector: 2 x 4 Onboard Standard Interface, Double Row Needle used in SPI InterfaceGlobal Free Application Frequency 2.4 ~ 2.5 GHzSupply Voltage: 1.9 – 3.6 VoltBoard Size: 30.8mm x 16.5mm