Small Hamburger Mini Portable Stereo Speaker for iPod, MP3, MP4, MP5, Mobile Phone, Laptop

1. Impedance: 4Ohm 2. Frequency response range: 200Hz-20KHz 3. Speaker unit size: 3.5mm 4. Distortion: 0.5% 5. Sensitivity: SNR>=89dB 6. Power: 2.2 7. Speaker interface: S/PDI input 8. Product size: 5.2×5.2×3.8cm 9. Material: ABS