Vivanco AS PRO Stereo 5W Black

50 - 18000Hz, 4 Ohm, 90dB, 5W RMS The active stereo speakers AS PRO are perfect for mobile use and compatible with any kind of device equipped with a 3,5mm stereo socket – e.g. notebook, smartphone or mobile phone. The built-in amplifier runs on 2 batteries type AAA. Alternatively the speakers can also be operated in “passive” mode without batteries.