As battery AAA standard batteries are included, ie when worn they can be exchanged with no hassle.
My criticisms:
- Half a star deduction that one in movement (eg when you get on the couch with the bracket) a creaking (through the flexible support) in earphone.
- One and a half star deduction for the incredible bad design of the charging station:
The shells, into which one puts the headphones are so poorly marked that in any case a shell remains never lie in the fact (as in the picture you get never back down). The charging contacts are on one side, and also have no pronounced latching that you need 10 attempts to bring the headphones on the contacts. Worse is the fact that the charge indicator takes two to three seconds, until the contact is displayed. That is why I would have often thrown the headphones' around the earth. " This can - although I am satisfied otherwise - extremely nervous.