I misplaced mine on the course today, and unfortunately, no one returned it.
Of course, I would recommend using Bluetooth earbuds.
Any JBL speaker would be great
I would recommend the Wonderboom 3 as it a light carry
I have been using the Sony SRS for some time now and I think it is great
You should get your hands on a Puma PopTop Mini Bluetooth speaker, it is small but performs like a home theatre
Get those kind that fit snugly into your ear so you don’t annoy the rest of us