Its not strong. ?? solo es la parte de Arriva ! But thats all useless. Received in a timely manner. It is so ridiculous. I also purchased a light blue and I have burgundy and black on standby I will also get white. T-shirt arrived and fit as expected. Range is good, can wander all over the house and still hear my music. The originals were unbelievable and life prolonged with a bit of epoxy glue. I go trough a lot of head sets so I decided to go with an inexpensive pair and boy did I get my money?s worth and then some.