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Specifications SSA-120 siren device 120 watts SSA-120 contains sound echo can be operated on microphone inputs. SSA-120 contains precise sound adjustment TREBLE- BASS. SSA-120 contains Bluetooth and USB and memory and radio and remote control for it. SSA-120 can receive Bluetooth signal from any device that has Bluetooth feature. SSA-120 speaker outputs for sound: 4-16 ohms, 50V/70V/100V. SSA-120 input: microphones 1-2-3-4-5 m.V / 600 ohms unbalanced TRS input. SSA-120 power supply: 220-240V 50/60Hz.