Teen Titans Robin's Birdarang Wrist Weapon

I bought this for my son and granted he is only 3 1/2. The birdarang sits on the wristband and only spins. It makes a noise like something will happen, but it spins and stops and that is all. Much better in the box, left on the shelf...

My 4-year-old son just LOVES anything Titan, so he was really excited to get this toy. We both thought that the toy would lauch from his wrist with a spinning boomerang action. Unfortunately, all it does is spin on his wrist (limply) and make a really obnoxious noise. He played with it for a day before burying it in his toybox.

I bought this for my 3 year old son who LOVES Teen Titans and I thought it was supposed to launch off his wrist or something but all it does is spin for like 3 seconds and thats it. He gets very upset because he thinks it is supposed to launch. Not worth it!