The increased accuracy and frequent polling of the motion of the mouse make a great accessory for play without having to make large movements.
Bluetooth and the unit was actually improved: whereas with the old version, all keyboard input "blocking" the detection of mouse movement for about ten seconds, making it unusable, this new version allows play Bluetooth, with the same precision, the same ease of use, and the same programming as when using a wire.
Only downside, the rapid consumption of batteries by Bluetooth, but given the settings that I chose for the accuracy and scanning, it was somewhat inevitable ...