The product certainly works, but bad! I arrived to reload the knobs only when 2 controllers are asked, and again, we have to stall because the contact is bad, then time must be checked in time for the controllers are always supported. Moreover once loaded, it does not last so long, unfortunately (or so I've never managed to completely load, mystery), I prefer therefore to use rechargeable batteries, at least I know they charge. Very disappointed, I hate this!