VR Pro Duo Design features:
Miniaturization design, input & output port using horizontal row; Dual battery input design, automatic switching and balancing between batteries; 4 current outputs, support 4 channel servos direct connection; Plug and play. No need to weld the connectors; Internal dual input voltage monitor for low voltage with memory function; Support HV servos (7.4V), output voltage is switchable; Includes FSS-3, the failure safety switch with status indicator (#46813), VR Pro Duo also supports FSS-4 lightweight switch(#46814); Equipped with heat sink and external cooling fan (#46816); Support up to 10pcs of 30kg digital servo; Can be used on the largest 13KG model aircraft, eg.120CC Gasoline Powered Aircraft. Electrical Features:
Linear regulator, no interference, low ripple; The input power uses simulated diode dual redundancy power supply; Double MosFET output, independent linear control IC, high output current capability; Low dropout design makes fully use of the cell's capacity, especially on HV mode; Large heat sink, good heat dissipation and high overload capacity; Built-in MCU precisely controls FSS-3 and internal voltage; Fail safe design, ensuring Non-stop work; SMT process, ensureing the quality; Input & output port all use high quality tantalum capacitors; Dualsky Shanghai factory assembled, fully tested before dispatch. 
