The unit with chargeable and receiver 2 in 1 convenient stand
When you're not working or having a pause during the working, you can just put the mouse on the stand to charge for a while; or you can charge fully before working.
Auto smart sleep and wake-up function to save the power
Button life: over 2.000.000 times
Compatible with Win98, ME, 2000, XP, NT
Color choice: white, black, silver/black, white/blue and any custom made color can be acceptable
Inner packing: white box, blister card and any custom made packing can be acceptable