IKKO Obsidian OH10 High-Fidelity In-Ear Monitors - Open Box (Perfect for Audiophiles, Musicians & Studio Recording)

IKKO Oh20 in-Ear Monitor, Detachable Design in-Ear Headphone/Earphone,10mm Dynamic Drive + Knowles 33518 Balanced Drive Dual Hybrid

• Pure copper cavity hybrid structure: It is made of pure copper combined with the acoustic driver design of the dual titanium driver, the internal harmonic resonance distortion is reduced, and the sound is more delicate and natural.5.7mm nozzle
• Dual titanium driver: Knowles 33518 supply comfortable high frequency and ultra high frequency,10mm polymer titanium diaphragm dynamic to create the transient and dynamic
• 2-pin 0.78mm detachable design, High purity OFC silver-plated cable, both high frequency extension and low frequency strength.
• A titanium coating is used on the outside of the chamber to prevent scratching and to inhibit bacterial growth. The inside of the chamber is coated with platinum to enhance the sound quality through the special sound resonance of platinum