I have 2 of Apple's bluetooth keyboards, one older 3 battery version, and the newer 2 battery version. Both of them constantly disconnect from the 10 foot distance from where sit from my Mac Mini and 40" display. Bought myself a Logitech K750 wireless keyboard along with Logitech M510 mouse about 8 months ago and never had a problem with it disconnecting. I like that both use the same USB dongle. As far as any mouse Apple has ever made, they suck big time. I've always used a Microsoft or Logitech mouse with my Macs for the past 12 years.