Whistlecopter has a Patent (whistles on the way up) this is a starter 4 pack for the amazing price of $20. Whistlecopter is embodied in US Patent No 9279646  .

Specification

Each Whistle copter  with our Exclusive Viper Launcher is individually packaged; and has an instruction card with photos in each package. Four different colored Whistle copters are than put in bigger package with photos on the front of package and and instructions on the back

Each Whistle copter has a VIPER LAUNCHER with a red seven inch red rubber band, and batteries ready for a great flight. Only Whistle Copter has differently designed wings in each 4 pack for a new experience each time you launch a new Whistle Copter. Also included as part of this deal are 4 Maxi Sling-shots with 8 inch rubber band, 4 extra Battery packs, 4  extra Whistle Copter Wings and 4 extra Rubber bands.

Description:

Our Whistle copter whistles on the way up, then flies just like our Original Copter, but goes a little higher upon launch. The maxi Slingshot Launcher is designed for the ULTIMATE flight experience and keeps your fingers from getting fatigued. We are the Whistle Copter, not a copy or cheap knockoff. The height that our Whistle Copter achieves is because of the quality plastic that is used and which also makes our Led Copter very durable. Our wings are much thicker and maintain the crease very well. Our wings will never flap in the air hence our copter spins down after hovering in the air at the maximum height of 200 feet.

Check out our Professional Wing Folding Video for maximum height !!  Also, Whistle Copter has the brightest led light as we never use old batteries in our copters as many of the cheap knockoffs do.

How it works: Fold the wings, launch the Whistle Copter into the wind with our Exclusive Viper Launcher, when it reaches the maximum height 200-250 feet it will come back slowing spinning in the air with its blades open so you can catch it. Read the instruction card in each package carefully before starting your first launch.

Orders will ship out the same day once payment is cleared and will reach you within 2 to 3 days. Click Here To Visit My eBay Store!