Autonomy greatly pleased, when connected via bluetooth (by the way, the connection is stable, there were no problems at all), the mouse worked on an ancient battery for several months. For a long time I could not figure out why the macros are recorded, but do not work, it turned out that even when connected via bluetooth, the whistle from the mouse must be connected to the PC, then everything works as it should. Well, there is a nuance that by default it is now problematic to download software from Razer .