For sale HI - FI HEADPHONES AKAI ASE - 30.... here are their characteristics...Wave bands - without Power type and voltage No Power needed Loudspeaker 4 Loudspeakers / Ø 8 cm = 3.1 inch Material Various materials from Radiomuseum.org Model: Stereo Headpohone ASE-30 - Akai Electric Co., Ltd.; Tokyo Shape Very small Portable or Pocket-Set (Handheld) < 8 inch. Notes 2 Vías, control individual de volumen para los dos canales. Respuesta: 20 - 20 kHz, Impedancia: 8 Ohm. Akai headphones ASE-30, two way HiFi sytem. Individual volume control for left and right channel. Net weight (2.2 lb = 1 kg) 0.650 kg / 1 lb 6.9 oz (1.432 lb)....are in excellent condition fully functional unused quality and highly collectible and rare worldwide.they are of course genuine MADE IN JAPAN from the golden age of AKAI.they are addressed to collectors and collectors...accompanied by their original packaging...sale price 250 euros...PLEASE NO EXCHANGES - NO PACKAGING - NO COLLAPSE....