Up for sale is a 4 in 1 system for any Mini Helicopter. This is BRAND NEW still in the package. I bought one extra a while back but now I have no use for it. The 4 in 1 system includes Gyro, Mixer, ESC, Receiver. It uses a 72Mhz frequency. It's a 6 channel system too so it's great for those CP flyers. I'm asking $80 CAD OBO. I am very flexible with prices so don't be afraid to ask for a deal. I take paypal or money order. I can also meet up within the GTA area. I'm usually around the Hobby Home area.