Yes, it's frustrating really. No matter what I tried I couldn't get the beverage I'd made downstairs to install remotely to the mug situated upstairs. In the end a direct interface between the Mug and Kettle resolved things...but only after I'd installed the HotChoc directly in the mug first
then situated the mug and kettle together,
then installed the hot water.
So, mug is "wire less" in the literal sense, but not based on how we interpret wireless (i.e. no physical connection) today.
Still, the whole beverage process has been offloaded with "stuff wot goes on in the kitchen" now, so in effect using the wireless command "make me a cuppa luv" will eventually materialise said mug full of my chosen beverage before too long
So, yes, my mug is indeed operating wirelessly now & delivering on it's promise of tasty beverages, however it was quite a mission and the key "accessory" needed for it to work correctly can be somewhat fickle at times...
Scoob.