I use it for several years, this is my second purchase (tired on the first button), with a helmet "choker" it's perfect, the battery takes several hours (I would say 3), I serve 2 to 3 times per week. Only downside no random, but hey, with a micro SD 8 gigabytes and a good playlist, we made it.
A small cheap MP3 player, which attracts no lust in transport.
