BLE connectivity issue with some devices

[Brinto James]

I am using the u-blox NINA-B410 in BLE Central mode to scan for nearby devices. It only detects BLE-advertising peripherals (phones running BLE advertiser mode, BLE watches, etc.).

However, no Bluetooth speakers appear in the scan, including models like Zebronics ZEB-COUNTY, boAt Stone, JBL Go, etc. These speakers seem to use Classic Bluetooth (A2DP) and do not broadcast BLE advertisements, so the NINA-B410 cannot detect or pair with them.

I need a speaker or audio device that does broadcast BLE legacy advertising (ADV_IND) so it can be detected and paired with the NINA-B410.

Can you suggest any speaker model or audio module that supports BLE advertising and is compatible with BLE Central devices like the NINA-B410?

Thanks.

[Turbo J]

No Nordic hardware is capable of talking to BT classic stuff AFAIK, and other hardware would be off topic here. Shopping questions tend to attract too much SPAM.

There is a whole generation of audio devices (like headsets) that use BT classic for audio and BT LE for control (volume etc). Thus its not easy to spot a BT LE audio capable device even when the manufacturer has documented specs properly.

NINA-B410 uses NRF52833 MCU, which I would not consider powerful enough for BT LE audio applications. The recommendations from Nordic that I read here usually boil down to "use NRF5340 MCU" - that one has a more powerful core with lots of Flash and RAM.