I bought the Jay bird spirit a few years ago it was awesome. The quality was outstanding but you couldn't ajust the sound. I purchased a new Jay bird freedom, the sound was incredible but any movement walking made the ear buds would fall off. Everytime I would grab the review it was so frustrating they would fallout great sound and you could ajust the sound pitch quality. The freedom headsets had a heavy power unit with a clip to hold the power unit up but did not work.