Small Hamburger Mini Portable Stereo Speaker for iPod, MP3, MP4, MP5, Mobile Phone, Laptop , S-MS-0139, S-MS-0139E, S-MS-0139G, S-MS-0139P, S-MS-0139RR, S-MS-0139W, S-MS-0139Y

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: 5.2x5.2x3.8cm
9. Material: ABS