The headpiece offered excellent and clear service as far as features were concerned. I liked the tones in the earpiece indicating various functions including connecting to my Blackberry. The bad side was the earpiece ear loop which was always loose and gave the impression at times that the unit would fall off my ear. The final problem was when the microphone slowly died until the unit was useless. This was also the second unit that failed on me. I would not recommend considering this unit. Shop for something else.