Samsung MX-C730, Home audio mini system, Black, 5 discs, 180 W, 75 Ω, 180 dB Samsung MX-C730. Type: Home audio mini system, Product colour: Black, Number of optical discs: 5 discs. RMS rated power: 180 W, Impedance: 75 Ω, Signal-to-Noise Ratio (SNR): 180 dB. Headphone connectivity: 3.5 mm. Audio formats supported: MP3, WMA, Disc types supported: CD-RW. Volume control: Digital