Cooler Master C-PA01-WW. RMS rated power: 4 W, Frequency range: 410 - 20000 Hz, Signal-to-Noise Ratio (SNR): 80.9 dB. Speaker interface type: USB, Headphone connectivity: 3.5 mm. Weight: 115 g. Type: Portable speakers, Dimensions (WxDxH): 160 x 90 x 12 mm, Power requirements: 5V DC