1.Built-in player, support SD \ MMC card, USB card; 2.Intelligent Remote Operating System, allows you to easily control; SpecificationsProduct ListQTYPower output, left channel right channel 4W * 2 (4Ω), bass 15 * 1 (4Ω)1,Digital Active Speaker1SETInput Sensitivity ≤400mV2,Remote control1PCSSNR ≥82dB3,Audio cable1PCSDistortion ≤0.7%4,Power adapter1PCSFrequency Response 60Hz-20KHz5,product ...