... , no drivers8. Compatible with laptop, iPod,MP3,MP4,MP5,cellphone,PSP etc. via 3.5mm audio cable9. Dual power supply ( USB ... . Anti-magnetic speakers (2 pcs)4.High-efficiency digital amplifier chip, saving power up to 50%5. Speaker output short circuit ... protection and thermal protection6. Dynamic Bass System, stirring sound with clear effect7. Not only an elegant portable speaker, but ...