Different from Bluetooth 4.0 and 4.1 Speaker

Solution
You might want to heed to Bluetooth.com site if you are interested in the intricate details of BT4.0, 4.1 and 4.2 implementations. For dumb speakers, it makes no difference (and I doubt this speaker does it either). The Wikipedia article lists what's new in 4.1 vs 4.0, and it does not make any sense for audio / speakers


So you mean no matter they are bluetooth 4.0 or bluetooth 4.1, they are the same?