Headset makes a high impression and has problems connected with my BT mobile phone and MP3 player. Plays reliably even by 1 room wall. About the original earphones the music quality is satisfactory. Who is a critical music lover, you can also connect high-quality headphones, of course, the usual jack. I hear the music very relaxed with my KOSS. The service is totally unproblematic after some practice - without having to look. Battery capacity is fine - about 6 - 7 hours. Device can easily connect it to a garment and holding - at normal movement - reliable. Good price - good product.
