The attached is the CE Declaration of Conformity for all the Q Acoustics 7000i Series Speakers, Stands & Brackets including models: 7000LRi 7000Ci 7000ST
Answer: The actual loudspeakers themselves are not Bluetooth, but the Hub to which they connect to is, it uses Bluetooth version 4.1 For a helpful video on how to use your Q Active system with Bluetooth, please take a look here