Many hobbyist on the forums have been enjoying the Hubsan X4 micro quadcopter. Now that Traxxas is bringing that quad to the US market under then guise of the QR-1, many more people will get to enjoy this tiny little quad copter.

We all have seen photos of how small the X4 is, but check out the X4 spare replacement canopy/fuselage on top of a business card. ($4.99 on BangGood or just $6.00 from a US source: MassiveRC)

Hubsan X4 and Traxxas QR-1 Replacement Canopy Fuselage

It weighs 8.23g and is a direct fit on the Traxxas QR-1 for those of you who like the black/white look of the X4 fuselage.

Some reference links.