"Go for a D-Cube"1.5 starson
Pros: Removable batteries, FM-transmitter built in on some models, good sound and rigid design (exepect for the battery hatch).
Cons: Get a Nextway D-Cube NMP-612T instead. Their FW is up to 1.31 whilst the JoS MP-300 fw has only been updated once since introductions. MP-300 suffers badly from FW bugs, and it seams tha D-Cube FW 1-31 has addressed many of these. For added value to this