: Often seen in inexpensive Bluetooth audio modules and DIY microcontroller projects that use Jieli (JL) chips.

: Always download drivers from the device manufacturer's support page (such as Acer or ASUS) rather than third-party sites to avoid security risks.

: Used to link control units and regulation systems where constant data feedback is required.

If you see a "JL_SPP" or "JP_SPP" prompt in your Device Manager, it usually indicates that a connected Bluetooth device is trying to establish a serial connection but lacks the proper instructions.

: Check if your device uses a Jieli (JL) Bluetooth chip.