Here is my review but first the ad copy "
The modern-day Card Stab!
Sonic Stab is a versatile card prediction routine with style! With a pair of standard headphones around your neck, you will pick out your spectator's chosen card every single time. Just toss the deck of cards into the air, crack the headphones like a whip, and watch your audience's reaction when you stab their chosen card with your headphones!
It is quick to set up, easy to perform, and extremely fun for both performer and audience!
If you ever want to feel like Indiana Jones while performing, Sonic Stab is the routine for you!
What you receive: 1 Sonic Stab Instructional DVD
TV rights not included with purchase. Please contact SansMinds for TV rights. "
I really like this effect. Someone brought up a question but it got deleted I think asking if the spectator can put the headphones around your neck like in the trailer, and I am pleased to answer yes! This is a really versatile effect and you can a lot of different objects. The one they talk about is cards, which will be the primary use and it's great. Something I have messed around with is using change though, and impaling a quarter, which has gotten great reactions. The effect isn't hard to do, and you can focus a lot on the performance and the presentation while doing something that looks impossible. They talk about doing a signed card version at the end (which is possible but I won't be using it).
Pros: Easy to do, easy reset, can be performed surrounded, can be done with one card, or multiple.
Cons: Cards end up on the ground, but it's a card stab.
I would rate this 5/5. It's a great effect and I will be using it.
Let me know if you have any questions!