The performance of this lightweight yet strong system is remarkable, while the most amazing feature is the volume of sound this minimalist system delivers. MP3, MP4, mobile phone, etc. can be attached to play. Output: Rms 4W (2W+2W) THD=10%. Frequency response: 150-18000Hz (+/-3dB). Signal and noise ratio of power amplitier: =>60dB. Loud speaker: 1.5 inch magnetic resistant 4 ohms. Line input: confogure 3.5mmstereoâs plugs. Power supply input: 4*1.5V AAA, DC-9V, USB.
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