With bone conduction technology, sound waves are decoded and converted into vibrations that are received directly in the cochlea, meaning the eardrum is never involved. The sound you hear reaches the ears via vibrations through the bones in your head and skin. There are no earbuds being stuffed into your ears and no pain.

Moreover, bone conduction is also another opportunity for some of the hearing-impaired people. 

For these people they used to need to be surgically implanted a device to convert the through-the-air sound transmission to vibration. Now this process could be replaced by these commercial bone conduction devices on the market, without any risks that a surgery would possibly bring.

Because the headphones utilize the bone conduction mechanisms of hearing, they are a great way for someone with a conductive hearing loss or single-sided deafness to enjoy audio streaming. They are also a good solution for those with any type of in-the-ear hearing aids.

Specification:

-Bluetooth Version:Version 4.0,Class 2

-Operation Frequency:2.402 to 2.480GHZ

-Play Time: About 5-8 hours

-Charging Time: About 2 hours

-Standby Time: About 500 hours

-Effective Distance:5-10 meters

-Weight:55g

-Battery:Li-ion Battery(250MAh 3.7V)

Package Includes:

-1* Bone Conduction Headphone Sunglasses

-1* Glasses Cloth

-1* Charging Cable

-2* Replaceable Lenses

-1* English User Manual