Bluetooth Issue

Hello suvankar85,

Thanks for choosing the Apple Support Communities. We understand you're running into issues pairing a Bluetooth device to your Mac. We have a few steps that can help you resolve this. Check those out below.

Connect a Bluetooth device with your Mac - Apple Support

You may also want to take a look at your speaker user manual to see how to put the device into pairing mode.

Another resource that can possible help is: Set up a Bluetooth audio device to work with Mac - Apple Support

"Set up a Bluetooth audio device

1. Make sure the device is turned on and discoverable.
2. If you can’t turn on the device or make it discoverable, see the instructions that came with the device.
3. On your Mac, choose Apple menu  > System Settings, then click Bluetooth  in the sidebar. (You may need to scroll down.)
4. Hold the pointer over the device in the list on the right, then click Connect.
5. If the device doesn’t automatically connect, follow the onscreen instructions to set up the device.

You can also connect a Bluetooth device to your Mac by clicking the Bluetooth status icon  in the menu bar and choosing the device. If the icon isn’t in the menu bar, you can add it using Control Center settings.

Select a Bluetooth audio device as your computer’s input or output device

1. On your Mac, choose Apple menu  > System Settings, then click Sound  in the sidebar. (You may need to scroll down.)
2. If your device is meant for sound output (for example, headphones), click Output on the right. If your device is meant for sound input (for example, a headset), click Input on the right.
3. Select the device you want to use in the list of devices."

We hope this helps.

Cheers!