Smart Glasses Open-Ear Bone Conduction Glasses with Photochromic Grey Lenses and Blue Light Blocking, IP6 Sweat Resistant Bluetooth Glasses with Music and Microphone, Gift for Men/Women

What is Bone Conduction Headphones? 1. Bone conduction is the conduction of sound to the inner ear primarily through the bones of the skull, allowing the hearer to perceive audio content without blocking the ear canal. 2. Differently, air conduction is the way sounds reach our ears. It is the way almost all sound is transmitted with like in-ear/on-ear headphones. What can these bone conduction glasses provide? * Protect hearing: Sound will be transferred by skull bones vibration bypassing the eardrums * Stay Aware of Ambient: Ideal for drivers, biker, runners or hikers who want to listen to music, but also wish to keep aware of surroundings * Wearing Comfort: Unlike in-ear/on-ear headphones which will cause ear pain or itchy with long-time wearing, bone conduction totally free your ears out of these troubles * Photochromic and Anti Blue Light Lenses: Can better protect your eyes no matter in outdoor or indoor. Lenses will automatically get shaded when in sunlight and will return clear when your step inside Product Specifics: 1. Bluetooth Version: 4.2 2. 250mAH Battery with 3-5 working hours 3. Power of Speakers: 1W*2 4. Speaker Sensitivity: 102±3dB 5. Net Weight: 32g 6. IP6 Waterproof (Not for swimming) 7. Input:AC 110V/220V 50/60Hz; Output: DC 5V MAX 1A Operation Instructions: 1. Play/Pause Music: single click click ON/OFF button to play/Pause music under playback status 2. Skip Song: Press and hold Volume+ or Volume- for 2 secs to skip forward or skip back 3. Answer Call: Single click ON/OFF button to answer call 4. Reject Call: Press and hold ON/OFF button for 1 sec 5. End Call: Single click ON/OFF button Notices Before Using: 1. Do not leave the glasses in your car in hot day 2. Please fully charge the glasses for the first time use 3. Do not use fast charging adapter, only use 5V-1A adapter