... Karaoke Speaker (SP-3019) 1.Equalizer & Echo 2.USB/card reader/FM/MIC 3.Powerful and Perfect Voice 4.Top Qualit Professional Karaoke ... Speaker( SP-3019)Description:1. Professional multimedia speaker ... Functions:USB,Cardreader , FM radio , MIC , Karaoke , portable audio playerPacking:1set/CartonN.W.: 23 ... 290sets/340sets Professional Karaoke Speaker (SP-3019)