Scope of supply: the Payer himself with Klipbefestigung for the swimsuit, a USB cable with the internal 4GB music storage can be filled and the built-in lithium battery is charged, an earphone-headphones with interchangeable end pieces.
The service is super. One finds the keys blind when they have been looked at once. Of course there is not much to use: turn on, adjust volume and possibly even push a little further - all you need while swimming not, because you do not have your hands free anyway! So there is no sound settings or the like. Need to change the volume you press the corresponding key (+/-) long, but also because I have found while swimming: I have the volume once set, changed once and then never again.
There is also no indication ... I want to swim and not have music BROWSE diverse music folder - therefore probably 'only' 4GB memory. But there are other players.
The sound is tinny and without bass first. Once you've got water in his ear, which indeed happened quite swim, everything changes and the music sounds like it should sound (bass and friends could be like the powerful bass ...).
Waterproof: the player should be up to 3 meters waterproof. I tested several times to 2.5m. What should I say, he is still playing.
Final: A very effective player, ideal for swimming - but no longer. If you want more comfort, is hereby wrongly advised (little buttons, no display, no settings, etc ...).