S.Dog stereo speakers - color: black - power adaptor included - frequency: 200~5000HZ - voice coil imedance: 8ohm ± 15% - max sound pressure: 97dB ± 3dB - cord lenght: 110cm - plug diameter: 0.35cm - material: polypropylene, abs & métal - dimensions: 16.5x16x16.5cm