... , iPhone, GPS, PSP, mobile phone, notebook computer, etc.2) This speaker can be deemed as perfect combination of classic and modem ... as masterwork of audio boxes.3) New mini aluminum vibration film loud speaker, which has clear alt and pure woof. The unique ... ) Signal and noise ratio of power amplifier:>=80db 4) Loud Speaker: 1.77 inch (external diameter 45mm), Magnetic resistant 4 Ohms ...