Thanks joshuachew and AC-12 for your valued input.

Yeah. I do want the Bluetooth cable for workout and on the go listening.

I'm seriously considering purchasing the UE 18+ Pro, however, it no longer comes with the bluetooth cable anymore, nor do they sell it on the website. Also I don't think I'll purchase the CSX version of the 18+ just for the bluetooth cable because I don't think the sound isolation and fit will...

I'm also wondering the same problem? Since I'm searching for a speaker for my college dorm, and the only two i'm considering are the Audioengine 2 and the HK souldsticks III.