Mini soeaker - folds up very small - powered via USB (thru laptop or connect to USB plug) or 4 x AAA batteries.
If you have original headphone socket on phone (or a connector) can also use as a phone speaker, or connect to a laptop/PC.
Hope it is of use to someone - haven’t used it for a while so keen to pass on.
Mini USB speaker for laptop/PC or phone (Sonning RG4)
This offer has been gifted to someone and is no longer available.