145,04 EUR
JBL Charge 5
20 h, Battery operated
JBL Charge 5
20 h, Battery operated
I listened to both speakers in the shop. The Charge 5 sounds really squawky next to the Flip 6. If you just want to listen to music quietly on the side, I think the Charge 5 is enough.
Bluetooth will come with a delay of 500ms at least. So technically it's working but you won't like. I tested it myself.
It is best to use a conventional smartphone charger with 5V and 2ah, but 3ah is also no problem.