For me, the screen transfer (smoothly) works in 2 of 3 devices. The direct transfer screen works on the Samsung Tab S, as well as the MacBook (OS X 10.10.2). When MacBook but only using the Chrome browser. (Tabs in Chrome browser can be transmitted with sound, the entire screen to now we have only without.) When Samsung S4 mini, the direct transfer screen unfortunately does not work at the time. The mirroring (screen transfer) is still in "beta" phase, therefore it is hoped that non-compliant devices will function in the future and smaller defects will be corrected.