Apple only includes native drivers for Broadcom and Intel Bluetooth chipsets, which are used in official Mac hardware.
If your HK-808 contains a CSR chipset, it might work plug-and-play on older macOS versions. If it features a Realtek chipset, macOS will not recognize it out of the box. Step 1: Identify Your HK-808 Chipset
on Mac can be tricky because it is an older, generic device often based on the standard. Compatibility & Installation Hk-808 Bluetooth Usb Adapter Driver For Mac
USB Bluetooth Adapters How To Pair A Bluetooth Device - StarTech.com
Recent versions of macOS (such as macOS Monterey, Ventura, Sonoma, and Sequoia) have dropped native support for many legacy third-party Realtek Bluetooth drivers. Apple only includes native drivers for Broadcom and
Put your target device (like an 808 speaker ) into pairing mode.
Ultimately, for most Mac users, the reliable driver for the HK-808 is not a downloadable file, but a wiser investment in a modern, supported adapter that will work with your current macOS version right out of the box. Step 1: Identify Your HK-808 Chipset on Mac
sudo pkill bluetoothd