Sanwa Supply Loudspeaker speaker with wireless microphone MM-SPAMP4

Ships from Japan [Maximum practical output]: 20W (10W+10W) [Frequency characteristics]: 180Hz~15000Hz [Speaker format]: Bass reflex full-range speaker system (magnetic shield design) [Speaker size]: 3 inches (diameter 77.8mm) [Load impedance]: 8Ω [Input terminal]: φ6.3mm standard jack (for microphone) x 2, 3.5mm stereo mini jack (for external audio input) x 1 [Power supply]: AC power supply (12V/2A), battery powered (uses 6 AA batteries) [External dimensions]: W297 x D133 x H152mm