JVC SX-WD5. Tweeter size: 20 mm, Woofer size: 105 mm. RMS rated power: 100 W, Frequency range: 55 - 50000 Hz, Impedance: 6 Ом. Weight: 3500 g. Type: Portable speakers, Dimensions (WxDxH): 143 x 243 x 257 mm, Audio output channels: 1.0