professional stage speakers, professional speaker 1.10"loudspeaker 2.Power:80W*2 3.Sensitvity:101dB 4. Impedance:4 ... stage portable speakers, active stage speaker, active speaker, speaker, professional stage audio speakers, outdoor stage speaker, passive stage speaker, ... With two microphone interface8) System Type: 2-Way9) Output power:40W10) Frequency response:30Hz-20kHz11) Impedance:4 ohm12) Wooden ...