PRODUCT INTRODUCTION
BN702 is a bone conduction Bluetooth headphone , instead of using traditional speaker , it use bone conduction technology to transmit sound .
unlike traditional earphones transmit sound by air , BN702 doesn&x27;t plug or cover users&x27; ears, It transmit sound by skull . users could hear outside voice and earphone voice at the same time . while people nearby can&x27;t hear your BN702 , but you can listen to them and listen to your BN702 at the same time . BN702 can be used when you are working , studying ,sporting ,or just for hearing aid purpose .
PS. IF you plug your ears with earplugs , and listen music by BN702 , you will find its stereo effect is extremely good
HOW TO USE
1. Turn on the 702 earphone .
2. Search and pair 702 earphone on your mobile phone or other devices by Bluetooth .
3. The big difference for bone conduction earphone compared with traditional earphones is that you can hear voice around and voice from earphone at the same time .
NOTICE :
*The bone conduction earphone transmit sound through user&x27;s skull , instead of by air , New user might need spend some time to learn and find a most suitable position to wear the earphone .
PRODUCT FEATURES
Product: Headphone 702
For Bluetooth version: for Bluetooth 4.0
Support: HSP, HFP, A2DP, AVRCP protocol
Frequency response: 20Hz-2000Hz
Sensitivity: 123 & plusmn; 5dB
Impedance: 32Ω
Working range: up to 10 meters
Battery: Built-in 220mAh rechargeable lithium-ion battery
Input: DC 5V+ 0.1V, 500mA
Music play time: 6-8 hours (music volume will affect time)
Charging time: 2 hours
WHAT IS IN PACKAGE
1 * Bone Conduction Bluetooth Headphone
1 x USB Charging Cable
1 x User Manua
SHIPPING TIME AND TRACKING
We use safe trackable shipping methods to ship parcels .below is estimated delivery time for different countries :
Asian countries 5-7 days .
European countries 5 -12 days .
United States 7-12 days .
American countries 8-15days .
But sometimes it takes longer , depends on customs policy of your country . If you want to use even faster express delivery , you can contact us to arrange .
HOW TO BUY CHEAP AT OUR STORE?
1 : If you found discount available , pls don&x27;t hesitate . buy immediately . usually our discount only last for 2 days .
2:Follow our shop , and contact our salesman , you can get extra discount .
Happy shopping
What is real bone conduction ?
Bone conduction technology is to create vibration around user&x27;s cheek to transmit sound to user&x27;s hearing nerve through soft ear bone inside .It is a revolutionary technology , and very suitable for users who want to enjoy music alone but can&x27;t cut off other sound around .
However because when creating vibration , it cause air wave at the same time ---- it makes sound like traditional speakers at the same time . So some manufacturers use traditional air conduction speaker or use very tiny and weak "so called " bone conduction component to pretend bone conduction earphone . Those so called tiny bone conduction earphones can&x27;t make much vibration , actually still transmit sound by air like traditional speakers . So users can&x27;t feel the advantage of bone conduction technology with those " fake " earphones .
We advice customers who want to enjoy bone conduction technology , choose those earphones with bigger and better bone conduction components .