I use an apple tv for music in my TV room and dining room (wired) and would like a pair of speakers in different rooms (wireless). Ideally two different sets of speakers one in the kitchen and one set outside in the garden. The wifi works in all these spaces. Should I be looking at airplay or bluetooth speakers? And which ones? B&W zeplins seem to have issues with the airplay others say it works great. Suggestions for my set up would be appreciated.