... MP3 Speaker,New speaker 1.With SD/MMC Port 2.Volume Control 3.Earphone port 4.It's also your MP3 ... MP3 Speaker,New speaker SD/MMC Port Earphone Slot Volumn Control/Nest Song/LED Indicator SpecificationSpeaker4ohm,dimeter:36mmOutput Power2WBattery Voltage3. ... performance*With SD/MMC Card Port;*With Earphone Port*With Volume Control,Led indicator Package Information*Package Box: Blister Box*Over 5000 ...