Completely waterproof

Its main function is absolutely guaranteed because it is completely waterproof.
The buttons are easy to reach large, they fall easily to hand.
A clip secures the drive quickly and easily on any garment such as a bathing suit.
The atria hold well, no matter the activity. The cord is expandable, which is handy. It has the ability to change the plastic caps to adapt better to the ear.
The design is not exceptional but its shape is well in hand.

I find the price a bit too high, the reader loses a star for this, but I recommend, perfect in use being asked.