Noise suppression accessory for I-FI Audio's DC power supplies. By simply connecting it between the DC power supply device and the power adapter, it generates a noise signal and a signal in the opposite phase to remove noise (Kobayashi Hitoshi)
Accessories: original box, instruction manual
Main specifications: Compatible with 5V-24V DC power supply units (maximum 3.5A, 84W) IFI “Final” magnetic shielding/aircraft-grade aluminum chassis adapter outer diameter/inner diameter 5.5 ✕ 2.1 mm (adapter/5.5 ✕ 2.5 mm 3.5 ✕ 1.35 mm) 107 g (actual measurement including original box)