ACTIVE SPEAKER, karaoke speaker

MODEL:TCJ-15B Power:40W Impedance:4 Ohm Drive Unit:1''+15'' FR:40-20KHz Sensitivity:93+3dB Product(mm):424 x 366 x603.5 Package(mm):435 x 390 x 650 G.W.:10 kg Battery:7.4V/1800MAH