Features: The RP4TD use double channel 2.4GHz radio frequency, and thanks to its optimised circuit design, it excels in signal sensitivity, SNR ratio and overall performances. Stable DCDC power circuitry ensures low operating temperatures during extended use. Double TCXOs contribute to frequency stability and make the RP4TD a leader in its class. The RP4TD Build-in WIFI so that you can configure the receiver by wirelessly upgrading the firmware use PC mobile phone via build-in WebUI. The receiver is suitable for both drones and fixed wing models and can be installed in almost any flight controllers that requires serials receiver! Specifications: Material: ABS+PCB Item name: RP4TD ExpressLRS 2.4GHz Diversity Receiver Chip: SX1281x2 Frequency : 2.4GHz Working voltage: 4.5-12V Bus interface: CRSF Extend interfaces : UART Package Includes: 1x ExpressLRS 2.4GHz True Diversity Double Channel Receiver Kit note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.