The PS2 extensions should work but keep in mind that there is also an AC plug required for the base/receiver to recharge the mouse. I was also in the market for a new wireless K/M combo and originally tried the Gyration Ultra Suite. I was having problems with range and at times it wouldn't work unless I was about 1' away from the base.
I was looking at some other threads and one user stated he got his Logitech MX Duo to work at about 15' away. I have a Logitech MX Duo for my main PC and tried to see how far away I could get. I was able to get 19' away from the base and both the mouse and keyboard worked.
As far as the restocking fee, try picking it up at Best Buy. I'm pretty sure they don't charge a restocking fee and you have 30 days for returns/exchanges.
Good luck.
I was looking at some other threads and one user stated he got his Logitech MX Duo to work at about 15' away. I have a Logitech MX Duo for my main PC and tried to see how far away I could get. I was able to get 19' away from the base and both the mouse and keyboard worked.
As far as the restocking fee, try picking it up at Best Buy. I'm pretty sure they don't charge a restocking fee and you have 30 days for returns/exchanges.
Good luck.