The Decibullz Bluetooth earphones are easily and quickly molded to the exact shape of your unique ears. Comfortable, secure and noise isolating. Decibullz Wireless in-ear earphones combine easily formed custom-molded earpieces with the latest in wireless audio technology.
Easy directions to fit and comfortable. However either I have an unusual ear canal and concha or it is difficult to fit so they don't dislodge while running. That said much better than any other earbud I've tried.
Theses have been the best Bluetooth, wireless headphones I have purchased. Great sound, customizable, molded fit which stays in your ear even during a rigorous work out. Added bonus is its noise isolating feature which is perfect since I am a frequent flyer. Bought 2 sets. The 2 had enough battery life to last me through an 8 hour transatlantic flight. One of the original buyers and more than pleased with my investment.