ETON ET-3013 2.1 multimedia Speakers with Amplifier Stimulated sound stereo type is constantly evolving with all the sound of the soundtrack. Content: Unity of sound control 2 hearings Compatibility with:computer, audio occupations, TV, laptop AUX cable is included for mobile and laptop No Bluetooth Sound power: 50 watts (20 watts 15 watts; 2) Hesitation: 40-20 Hz. Sensitivity: 80db. Distance: 45db. Function power: 220-230 ft (50/60 Hz). Weight: 5 kg. Built-in noise reduction system.