DL-560 Portable belt amplifier 1.Advantage:portable 2.Battery:6pcs 7# 1.2V ... Ni-Mh rechargeable./1.5V Alkaline battery DL-560 Portable belt amplifierSpecifications:Output Power:6W(maximun)Output Impedance:4Ω operatingSpeaker:6 ... -6 hoursApplication:Teaching, assembly, Conference, Church, Parade, Lecture, Auction, Sale promotion, tour guide, assembly,speech,etc.Our728 series PA amplifier can ...