for $80 I literally cannot believe the sound quality coming from these headphones. All in all, pretty happy with the purchase considering that the stock tips were giving me trouble. Actualización: después de medio año de uso y eso apezar que los ocupe muy poco, al estar escuchándolos se empezó a distorsionar el sonido, de repente se apagaron y ya no prendieron creí que se agotó la batería pero no! Sennheiser do not offer spare cables for this model - they do so for seemingly every pair of headphones theyve made apart from these ones. All I was looking for was a capable, small, inexpensive bluetooth speaker. The use was only on car trips and hence not used very heavily! I found Activate interesting but the accompanying acronym is quite long which makes it difficult to utilize easily. Lo consiglierei sicuramente a chiunque abbia bisogno di un microfono da palco . I chose the 10 because I also have sensory neuropathy in my toes/feet from lumbar spine issues and I like how they are a little bit long so that I dont hit my toes and injure them. The upper part of the shoe is very nice and it is comfortable.