What should we write, works flawlessly despite doubts about wireless. Now the CD is not for everyone and there are only a few songs here like our daughter. For a 7-year-old is better but if there are well-known German songs that we knew that beforehand and you can buy other. Unfortunately, I find nothing of B. Egli loves our daughter! There were present batteries, the first set was empty but after 1 day. In any case it is fun and also for adults at parties great fun! And that is the purpose of having fun and we have.