Stack mountable full feature, full power VTx designed by VivaFPV! Super affordable!Compatible with SmartAudio 2.1, 30.5 x 30.5 stack mounting, R/C receiver mounting capability for clean wiring. Very clean power calibration and included lightweight protective thermal heat sink. Mountable facing up or down depending on your stack space. Full power output for long range. MMCX connector for ultimate durability and simplicity in use.TECHNICAL SPECIFICATIONS25/100/400/600mW power levels2-6S input voltage30.5 x 30.5 stack mountingButton and SmartAudio 2.1 control (licensed from TBS)MMCX connectorSBUS or CRSF receiver mountable on topWHAT'S INCLUDEDVivaFPV Vtx x 1MMCX to SMA bulkhead pigtail7x silicone wires for soldering