Gembird SPK301. RMS rated power: 6 W, Frequency range: 40 - 18000 Hz, Signal-to-Noise Ratio (SNR): 75 dB. Headphone connectivity: 3.5 mm. Operating temperature range (T-T): 10 - 55 °C. Type: Bookshelf, Audio output channels: 2.0, Material: Plastic