Depends what you do with it and where it is. If you are gaming then corded, bluetooth takes time to react.
Cherry are great corded keyboards got one upstairs.
Did have a Microsoft cordless Multimedia keyboard and two wireless infrared mouses used on the other pc's now. Battery in the one Microsoft mouse dont last long the other about 6 months 2AA batteries. Keyboards lasted about 9 months before changing 4AA batteries.
I have an older US import Logitech D Novo bleutooth mouse, keyboard and Mediapad, bought used. Emailed Logitech and said i need a UK psu what voltage etc do i need? Free of charge received two days later from Holland or Netherlands. Service and updates are superb. Can only fault it for being a little slow at times like about 5 nanosecs playing games and the batteries dont last that long 4AA about two months and 2AA in Mediapad though not required. Mouse is rechargeable in the bluetooth HID.
New DNOVO are rechargeable keyboards but expensive, seen that air mouse.
