The scientific evidence these guys provide seems pretty shakey if non existent (icbseverywhere.com/blog/2015/05/a-new-bracelet-scam-that-will-take-a-bite-out-of-your-wallet/). I think for a large shark it would be more a case of, "this tastes funny" rather than "I'm not going to eat that". Shark shield with it's active EM field seems at least plausible. the behaviour of those reefies in the video seemed no different to their usual eat and run tactics.

Personally I think using the white and black stripes on your board and wet suit would be a better investment.

I'd rather have a sharkshield which is proven to actually work. Sharbanz is someone's idea to scam money out of people. Watch this

cloudsurfer said..
I'd rather have a sharkshield which is proven to actually work. Sharbanz is someone's idea to scam money out of people. Watch this //

Lol looks like it used the bandz to floss!