Hi Paula and list: To add another brand recommendation, I own and use a pair of Sony folding travel speakers, model SRST-57. They're battery or AC powered (the AC "wall wart" being an option) and for their size, they sound very good, incorporating Sony's patented "Megabase" technology. For those who find it difficult to get to local electronics stores or choose not to shop online, they're available from IRTI in California. Cheers, Steve