Before that, I took a gaming mouse from Asus - earth and sky, G502 is three times lighter, but it works an order of magnitude longer on a single charge, a convenient small receiver that can be placed anywhere, the signal strength does not cause any complaints, the polling frequency can be adjusted and this is essential affects the duration of work (actually, a thousand times per second is not needed in practice), despite the fact that there are not so many programmable buttons, this is overcompensated by the modifier button, which practically doubles the number of buttons and allows you to program even LMB and RMB , without losing their main function, i. E. due to the combination with the modifier, 13 programs are obtained (plus three main ones, the function of which in their right mind should not be changed, but minus 2, which are usually programmed for "Forward" and "Back"). The scroll unblocker (i. E. when the scroll can be unlocked and allowed to spin by inertia) is generally a killer feature of mice from Logitech. It seems that the thing is rather useless, but as soon as you use it, you can no longer imagine life without it. Unfortunately, a fly in the ointment - once it just turned off and stopped turning on for half an hour. Half an hour later, it just turned on by itself. It is impossible to disassemble in order to clean it because of the guarantee, but it is also impossible to hand it over under the guarantee - because. she still made money. Fortunately, this only happened once.