The sound is very correct ... easy to use, and easily recognized. Purchased about 55 on promotion. The only downside that I give is that when the telephone with one device, the voice of the woman who is set to speak very loudly, and suddenly it always surprises ... Sometimes I think it has more potato with this female voice in music. What I liked is the possibility of a micro SD card (I think) in it. Then this product was a gift so I could not comment on the rest.
