The main difference between the 3 and 3.5 m is a slightly higher payload capacity of the 3.5 m RC Blimp. The 3 m can lift additional 300 to 400 g and the 3.5 m up to 500 g. 3D printed EDFs to comply with FAA and EASA regulations completely harmless to the user and spectators. Able to lift HD Video camera or other accessories like flags, internal RGB light, dropping mechanism for T-shirts, coupons, flyers,…. With a Li-Po battery it has 40 to 60 minutes of flight autonomy depending on piloting style. Fully 3D controllable as simple as any RC toy car.
Wire (Bank) transfer, Credit card or PayPal