4 unit mic pegang wireless 1 unit remote control spesifikasi Play USB, SD card, MP3, FM, BLUETOOTH Music tone : bass, treble Mic tone : Echo, bass, treble line input line output line input mic 2bh built in rechargeable battery 12v 7.0Ah Frequency range : VHF Loudspeker : 12 x 1 tweeter jarak mic bisa pakai sampe 38m suara bagus, jernih, bersih dan empuk cocok buat rapat, meeting, ceramah, pengajian, seminar dll acara GARANSI 1THN