Irctek 5pcs 2.4G IPEX Silvering Feeder line Antenna Replacement For FUTABA/FRSKY/JR Receiver Grey - 15cm Cable Type RG-113 (coaxial line: RG-1.13). Connector TypeIPEX. Material:silver plating, Cable length:15cm. Application: 2.4G remote control, monitor, model airplane, bluetooth etc. Not compatible with new version X4R/X4RSB, if you need, please choose B01MG6SS1S.