A teardown comparison of 2 bone conduction headphones
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Details:
What is a bone conduction?
Bone conduction is a way of sound conduction which transfers sound waves through Cranium, bony labyninth, inner ear lymph fluid, auditory nerve, auditory center. We can hear the sound using bond conduction every day.

【The Lightest Bone Conduction Glasses】: Lighter and more professional. The Frame is made of TR90 plastic,smooth and hiden structure design of bone coduction speaker helps it keeps the original appearance of traditional glasses, people around you will not notice the difference of your glasses between traditional glasses. No pain and no sens of pressure even wearing for a long time.
【BLUETOOTH VERSION 4.1 WITH MIC & CVC Noise Reduction】 Wireless Bluetooth 4.1with wide compatibility. 2 in 1 wireless connection allows 2 mobile device pairings into the headset simultaneously.The smart sunglasses has built-in noise-cancelling microphone that lets you make and answer phone calls. You can easily have phone calls with quality sound when riding, running, driving, boxing, fishing, playing the basketball, shopping and other outdoor activities.
【OPEN EAR SOLUTION】Open Ear Solution allows you to listen to music, answer calls, and hear notifications all from your glasses while still being able to hear the world around you.
【HIGH PERFORMANCE】Charging time:2hours, Standby time:300hours, playing music about 3-4 hours (depending on the volume and sound source varies), continuous call about 4-5 hours. Compatible with SmartPhones Iphone LG HTC Samsung. Android Windows.
【WATERPROOF & QUALITY GUARANTEE】※ IP67: Weatherproof and perfect for sports/working out.

1. Security

a. Ear can easily listen to music when you hear the sound of traffic around, guarantee travel safety;

b. Hands free. Bluetooth links, easy to operate, can receive wireless calls on the glasses.

2. Health

A Sound passed through directly to the auditory nerve bones, will not cause damage to the ear canal and eardrum, to maximize the protection of hearing;

B So that the ear canal is more refreshing, not easy to breed bacteria, does not cause itching ears or ear disease;

C.According to their own needs optional lenses in various environments are guaranteed to get the best vision protection

D.Our default comes with normal lens,you can buy the suitable Myopic lens to exchange

3. Comfort

Ergonomic design, comfortable and secure

Package Content:
1x Bone conduction glass
1x USB cable for charging
2x Transparent resin lens Model
1x English User Manual
1x Anti skid raised nose pad

Bone conduction glasses are mechanical vibrations that convert sound into different frequencies, many steps of sound wave propagation are omitted, and it doesn't affect other people because the sound waves diffuse in the air, only the wearer can hear. Sound passed through directly to the auditory nerve bones, will not cause damage to the ear canal and eardrum. Compared with other bone conduction eyewear, this device's sound leakage has been reduced by 75%

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