Raking Bone Conduction Hearing Aids Wireless Stereo Bluetooth 3.0 Headphone Earphone with Mic for Iphone Ipad, Samsung Tablet Pc Laptop

About Bone Conduction:
Bone conduction principle is based on the vibration of the skull pick up sound.
Bone conduction hearing AIDS, bone conduction headphone is based on the principle of development.
Due to the sensitivity of the ear is higher, usually people don't use your own skull to perceive sound, however, when hearing organ lesions for acoustic transfer blocked, the bone conduction may be used to compensate for the hearing.

Specificity:
Bluetooth: 3.0+EDR
Standby: over 10 days
Weight: 43g/1.5 ounces
Charge time: less than 2 hours
Effective distance: 10m(33 feet)
Type of speaker: bone conduction speaker
Play time: over 6 hours (time will decrease because of the volume increases)

Note:
Then they will be connected automatically once they are in the effctive distance.
These function may varies from different smart phone, for they have different OS and software.
When the device turned off, the headphone will be off, when turn it on again, please just press the Play button twice.
But if your headphone break off the device for a long time(over 3min), please click the Play button twice to connect the device again.
Due to the characteristics of bone conduction, if the heavy bass, the amplitude will be bigger, and you feel not comfort.
This headphone has heavy bass settings, if you feel not comfort, please decrease the volume.

2 in 1 Function
It may connect two devices with bluetooth at the same time,here is the operations:
When pair with the first device,then disconnect with the device,turn on the second device, then pair with the second one. Keep the second device and headphone on,then pair with the first device,the "2 in 1" function works.