After a slight apprehension when ordering seen its low price ( Most: - Immediate recognition when connected. - Good ergonomics. - Multi pleasant textures. - Well balanced weight (105g including battery). - Little noisy. - High precision. - Good sliding on a mat without even using desk. - Beautiful appearance and certain quality. - Nano compact receiver (- Accommodation under the mouse for it. - 1 button (on top) to adjust the 3 DPI levels as needed. - 2 buttons next / previous. - Old-toothed wheel. - No on / off button. Automatic standby after 7/8 minutes. A simple click and restarts. - 1 LR6 only. - Works seamlessly 5m from the nano receiver.
Cons: - Unknown brand (it can put off) but frankly worth a visit. - No supplied battery. - Toothed wheel to the former without the possibility of release as some Logitech.
A life of about 18 months is displayed but only time will allow me to get a real opinion about it. Posted less than 10 euros, it will allow all those who do not want to ruin access to an excellent mouse for a ridiculous price. It deserves 5 stars.