Yuin OK1 headphone Earbud hi-fi earphone & Ipod & Ipone

 NOTE: Click Here for Buying Sample in Our AliExpress Retail Store

OK1 earphones are the flag ship model of YUIN OK series earphones. 
 

Earbuds / In-ear Earphone Convertible design

Transparent, smooth and neutral sound

Best high extension in earphone product

Ultra low distortion, high impedance for hifi or professional monitor

Technical Parameters:

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

Packages:

A OK1 earphones

Rubber eartips

Storage boxs

A Y cord, 6ft

A 1/4 Stereo phone adapter

1.Voltage

Can you change the voltage and plug?Our voltage is 110V or 220V,and our plug is EU,US or others.
Yes,we will change the voltage and plug according to your shipping address.

2.RMA

Hi seller,I bought one device from your shop before,but it is broken now under warranty,can you help me repair it?

Yes,please send the defective device or wrong device to our Chinese address(please contact our salesman).
Once we received it,we will send you the new replacement or refund immediately.

3.Warranty

I bought your product 7 years ago,but it's broken now,can you repair it?
Oh...Dear friend,our warranty is 1 year,would you like have a try of the newest one?

4.Samples

Hi,man,I love your products too much,can you send me a sample to test?I will place big order in future.
Hi,my friend,Please buy products from our Aliexpress store directly.

/store/601461 

5.Shenzhen Shop

Hi,brother,I am going to Shenzhen,China,can I visit your shop?
Yes,my friend,welcome to our shop,you can have a try of your favorite devices,and it would be better if you could inform me in advance,so I can prepare for your needed devices.
Shop address: 4F9,No.3018,Gume,Wanshang Electric City,Huaqiang north road,Futian zone.Shenzhen,China.
T:86-0755-82521355