Qinpu S-1 Omni Driver Desktop Hi-fi Speakers Omni upward 2" full range driver MDF board with Chinese red high gloss lacquer finish Anti-vibration spike feet Frequency Response: 100Hz - 15kHz Inpedance: 4 ohm Sensitivity: 84 dB MAx. Power: 8 watts Net weight: 1.1 lb / each Size: 11.4" H x 4.9" W x 4.9" D