In terms of performance, this is a winner. Great reception and clarity. But the problem with this product is that it cannot fit in your ear. Even when it does fit, it falls off your ear when you laugh, talk, walk, run, jump, etc. Any movement will cause it to drop. Even with the ear hook, the problem becomes fragility. The device remains in place when used with the hook. The ear hook breaks very easily. To charge the device you need to detach the ear hook from it. You will loose an ear hook for every 10 charges at the least. Absolutely poor design concept. Great looks though.