Streamaroo for GoPro Hat Mount Model vI Slides onto Ballcap, No Straps on Your Head. The Simple, Elegant Solution for Low-impact GoPro activities. GoPro hat mount for your ballcap. Compatible with HERO 3+, HERO 3, HERO 2, HERO and other action cameras. Easy to attach and remove. Hundreds of Personal, Business & Industrial Uses. Compact & lightweightcarry in pocket or purse.