... ROSH 5.Ali member over 6 years Mini MP3 Speaker Player Specifications:1, Loudspeaker Output : 2.5W*22, Material :Environment ABS3 ... , Frequency Response : 120 Hz – 20 kH4, Driver(L /R ): 32 mm, 4 Ohms 5, Signal ... 6 years9. CE UL FCC ROSH Approval Mini MP3 Speaker Player