40mm x 10mm high speed fan with dual ball bearings and extension wire.

Runs off both receiver (6v) and 2S battery (8.4v) volages

Our 40mm motor cooling fan features a 7 short blades with larger brushless motor coil. Which allow higher torque to push the blade to the very high speed range of 14,000-15,000 RPM @ 8.4V

A 30mm x 50mm lexan sheet is included in the packing as wind guide for better cooling effect