HBQ-i7 Bluetooth Chip Identification
Here's one I found when searching JL chip logo: -



Note that this is an AC.... part so try and find who JL is....

But the chip number doesn't match the AC6905A number so maybe they use some form of coding.

Following the part number protocol used in the picture your device might be an AC1815E from JL (who appear to be based in China). Maybe it's related to JL audio who make weatherproof bluetooth modules: -



See also this SE question and this one where others have tried to find parts made by these guys but not very successfully. Good luck.