M-MAX ASUS SX5 Multimedia Speaker Synamic Listening for Laptop/Pc/Tv/Smartphones/Etc Frequency Response : 100Hz - 18KHz Power Supply : 5v / 1A RMS : 3W*2 ( THD < 1% ) Signal Noise Ratio : 8dB Impedance : 4ohm PC Video : CD-R / RW USB 2.0 Note: If you want to connect the speakers to your Television please choose the Speaker +2rca in the variation. Plug and PlayPlus 3.5mm to 2rca line, the speaker can be used for TV, TV can be used.