Streamaroo Universal Hands-free Smartphone Hat Mount. Slides onto a Ballcap, No Straps on Your Head. The Simple, Elegant Solution to Hands-free Mobile Video! Turn your Smartphone into ahands free videocam! Easy to attach and remove. Fits phones 5.5-8.5 cm (2.16-3.34) wide. Compact & lightweightcarry in pocket or purse. Carrying pouch included. Hat clip made of stainless steel. Universal phone mount fits most phones. Hundreds of Personal, Business & Industrial Uses.