Older MacBook Pro doesn’t see new modern Bluetooth speaker, why not?

MacBook Pro Mid 2012 readily connects to all my modern Bluetooth devices except it doesn’t see my new Sony SRS XB43 speaker.

I turn off any devices that my MBP tries to connect to so only the Sony speaker is available with its Bluetooth light blinking to indicate attempting to pair, but it has never shown up on the MBP Bluetooth list.

The speaker readily connects to my iPhone 6 Plus.

From the Sony specs page:

Bluetooth

Communication System
Version 5.0

Compatible Profiles
A2DP/AVRCP/HSP/HFP/SPP

Supported Codecs
SBC,AAC,LDAC

From MBP system report

Apple Bluetooth Software Version: 7.0.6f8
Hardware, Features and
Settings:
Name: Mr’s MacBook Pro

Address: 14-10-9F-D0-3B-20
Bluetooth Low Energy
Supported: Yes
Handoff Supported: Yes
Instant Hot Spot
Supported: Yes
Manufacturer: Broadcom
Transport: USB

Chipset: 20702A3
Firmware Version: v156 c5918
Bluetooth
Power: On
Discoverable: On
Connectable: Yes
Auto
Seek Pointing: On
Remote wake: On
Vendor ID: 0x05AC

Product ID: 0x8286
Bluetooth Core Spec: 4.0 (0x6)
HCI
Revision: 0x171E
LMP Version: 4.0 (0x6)
LMP
Subversion: 0x229C
Device Type (Major): Computer
Device
Type (Complete): Mac Portable
Composite Class Of
Device: 0x38010C
Device Class (Major): 0x01
Device Class
(Minor): 0x03
Service Class: 0x1C0
Auto Seek
Keyboard: On

Is there a way to manually enter the device address of the speaker to my MBP?

I have restarted MBP, debug Bluetooth on MBP to reset module, restarted again, turned speaker off and on etc.

Is the MBP so old now it cant see modern Bluetooth devices?
I havent been able to test this idea yet with a modern Mac to see if it can discover the speaker.

Any help much appreciated thank you