Unopened, brand new. Limited edition of 650. Design commemorating the 30th anniversary of the Gospellers' major debut! The Gospellers members supervised, and Yoichi Kitayama tuned the sound quality, resulting in these meticulously crafted original earphones! Earphone Specifications: • Driver Unit: Dual magnetic circuit dynamic driver • Frequency Response: 20–20,000Hz • Impedance: 18Ω • Sound Pressure Sensitivity: 108dB • Housing Material: Aluminum alloy • Cable Length: 1.2m • Accessories: Ear tips in 3 sizes (S/M/L, M already attached to the unit) • Includes G30 original carrying case • Development and Manufacturing Cooperation: Hi-Unit • Wired only (Bluetooth not supported)