About Bone conduction: Bone conduction principle is based on the vibration of the skull pick up sound.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.Bone conduction hearing AIDS, bone conduction headphone is based on the principle of development. Specificity: Type of speaker:bone conduction speaker Standby:over 10 days Play time:over 6 hours(time will decrease because of the valume increases) Effective distance:10m(33 feet) Bluetooth:3.0+EDR Charge time:less than 2 hours Weight:43g/1.5 ounces Note: These function may varies from different smart phone,for they have different OS and software. This headphone has heavy bass settings,if you feel not comfort,please decrease the valume. when the connect distance of the item is over the effective distance(10m),the headphone will be broken off the device.Then they will be connected automatically once they are in the effctive distance.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. When the device turned off,the headphone will be off,when turn it on again,please just press the Play button twice. 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.
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