Online a lot of trolley speakers, is specialized in the use of outside dancing.
Recommended the following brand name Hushan brand trolley speakers, buy 10-inch speakers is more than 1,000 - power 150W.? Buy 8-inch speakers more than 8 hundred - power 80W.
Hushan O-BGY4001 portable trolley battery speaker 8-inch 10-inch square dance sound outdoor morning exercise teaching.