Description Item Brand Radiolink Item Name R7FG ReceiverMaterial ABS and electronic componentsColor BlackProduct Size 30 18 5 11 5mmAntenna Length 200mmProduct Weight About 6gPackaging Weigt Approx 8gSpecification Frquency 2 4GHZ ISM band 2400MHz 2483 5MHz Channel 7CHSignal Output PWMPPM PWMSBUSModel Application Car BoatSpread Spectrum Mode FHSS 67 channel pseudo random frequency hoppingVoltage Range 4 10vOperation Current 300mA base on power voltage Compatible Transmitter RC6GS RC4GS T8FB Note Also compatible with RC3S RC4G But as these two transmitter do not have usb port the latest firmware cannot be updated and the transmission information of voltage and signals cannot be displayed on their main interface Control Distance 600m on the groundPackage included 1X R7FG Receiver