ASTOUND UV 400 Adjustable Lenses Music Smart Sunglasses Stereo Earphone  (Smart Glasses, Smart Black)

Characteristic: Track: Version: V4.2 Transmission Range: 10m Standby time: 6-10 days Charging time: 2-3 hours Call time/listen time: 6 hours 3 hours Wearing method: in-ear Bluetooth protocol: A2DP hands-free head Battery: 120mAH/3.7V lithium battery Lens color: gray, yellow, brown, transparent Functions: Stylish appearance, unique design, personality development features. Top quality sunglasses formed the main body. Supported handset and hands-free profile. This item is the perfect combination of practicability and fashion. Most fashionable design with foldable glasses Made of polarized lens, it has the function of anti-ray, anti-glare and good eye health care. Hi-Fi headphones integrated directly into the frame and adjustable 270 degrees for a comfortable fit. It can work for all Bluetooth mobile phones, you can enjoy hands-free conversation with your friends. Phone conversation mode during incoming and outgoing calls. Remark: Due to the different display and different light, the picture may not reflect the actual color of the item. Thank you for your understanding. Bluetooth boot connection method: When the Bluetooth function is on, you need to press and hold the button with the Bluetooth logo for 3-4s. Observe the change in the indicator light: when you see the indicator light of a color flashing, do not think that Bluetooth is activated. Don't let go, keep pressing until you see the two color lights flashing alternately. Let go, then the Bluetooth device is turned on. At this point, you can turn on your phone's Bluetooth function to search for external Bluetooth devices. When you find that the phone sends a password, enter 0000 by default. After input, the Bluetooth device will connect automatically. Package Included: 1 X Bluetooth Sunglasses 1 X storage bag 1X charger 1 X charging cable 1 X Instruction Manual