Type: Satellite Speaker, 2 way speaker , ported, Enclosure: ABS, Driver Size : HF:0.5" polycone tweeter, LF: 3" woofer, Amplifier Power : 40-100 Watts, Nominal Impedance: 8Ω, Sensitivity : 87dB, Frequency Response:100Hz - 20kHz, Dimensions (WxHxD):171 mm x 100 mm x 108 mm, Mounting Options: Wall mounting bracket included, Weight: 0.75Kgs per speaker, Packed in Pairs.