Mini speaker,Portable card-inserting, Speaker system: 80Hz-18kHZ,FM,S/N ratio: >65dB Mini speaker,portable card-inserting mini speaker: 1. Portable mini speaker for Ipod, Mp3, Mp4 player, PC & Mobile phone 2. Colour Led: 12pcs 3. Speaker system: 80Hz-18kHZ 4. S/N ratio: >65dB 5. Power supply: Li-Hi battery 3.7V 6. FM function optional Mini Speaker(A1)