Yuin OK1 Earphones Review @ techpowerup.com

Yuin OK Series appreciation thread @ head-fi.org

YUIN OK1. New Canal phone/earbud @ head-fi.org

The BIG Yuin Comparison (PK series - OK series) @ head-fi.org

Technical Details

• Impedance:150 ohm(at 1KHz)*
• Frequency response: 20-24,000Hz
• Sensitivity:109 dB(at 1KHz)
• Maximum Input Power: 1000mv
• *Head-amp or high output portable audio required

Shipping method:
To US, Canada and Russia: USPS
To any other countries: International Express mail (EMS, UPS, DHL or Fedex)

Warranty Policy:
30 days refund: shipping cost is not refundable.
1 year replacement.
The cost to ship a product back to us for repair, replacement, refund, exchange or upgrade is the responsibility of the consumer. The cost to return the product to the consumer is the responsibility of Head Direct/HiFiman

• Yuin OK1 Earphones Review @ techpowerup.com
• YUIN OK1. New Canal phone/earbud @ head-fi.org