Like most other reviewers, I was impressed by the solar concept. And at first I had no problems. Soon, however, occurred in the already read dysfunction until shortly afterwards went nothing more. Even by an auxiliary battery the mouse could not be brought to life.
I do not know what was the fundamental problem with the mouse, but that does not matter in the end: It is not (any longer) and I will return again!
By the way:
Simultaneously with the eLive mouse I bought the new Logitech solar keyboard. This has failed once and still is, after 9 months, up to 100% battery power.
