Specifications:

-Drive Unit: 6MM

-Drive Type: Moving Coil

-Frequency Response: 20-20KHz

-Sensitivity: 96±3db

-Impedance: 16±20% Ohms

-Cable Length: 1.2M

-Connector: 3.5mm Metal Material

Slanted Ear Design: 

More comfortable to wear with ergonomic design,not easy to slip, long-wearing without fatigue. 

TPE Wire Matterial: 

High toughness wire brushed wire,Numerous of repeatedly tests which makes it strong and durable, and enhanced the service life.

Stereo sound quality: 

6MM custom moving coil unit, high-intensity unique integrated sound cavity creates extraordinary sound quality, thick bass, high-pitched clarity.

Extraordinary Sound Effect: 

The rhythm begins with music, and the sound quality is clearly defined, making music as passionate as sports.

Powerful Compatibility: 

IC smart chip, widely compatible for digital devices such as smart phones, tablet, computers,etc..

What you get: 

Sleep headphones, we provide 30 days money back and 1 year warranty and 7x24 friendly service.

Customer questions & answers:

Question : What is the reason that sleep headphones can't be used?

Answer : Dear, headphones made of soft silicone help sleep. 

During use, the inner coil of the earphone may be disconnected due to being squeezed. Recommendation: Avoid pulling during use.