Wireless call music stereo Bluetooth headphones, sunglasses-style headphones

1. The electronic products need to be transported internationally. Please charge this product for 2 hours before the first use.
2. If the product has any malfunction in operation or function, please carefully read the user manual. This will help you solve most of the problems. -------------------------------------------------------------------------------------------------

Connection method:
1. When starting for the first time, it is recommended to download this application and use it together. (You can directly download it through the QR code on the instruction manual.) 2. To connect this application, first turn on the Bluetooth function of your phone, then open the application on your phone: 3. The Bluetooth will find this device, click to connect, and then the application will display that the device has been successfully connected. 4. This application will scan the QR code on the device to establish a connection (Unable to connect: Please turn off the device and restart it). 5. For the phone, when installing this application or operating it in the phone system, be sure to grant it all background running and reading device information permissions so that the watch can always be synchronized with the phone. 6. For more detailed information about additional functions and operation methods, please refer to the product user manual. 
-------------------------------------------------------------------------------------------------
Specification: Color: Black
Plastic material casing
Frequency: 2.4 - 2.480 GHz
Bluetooth version: 5.0
Transmission power: Class 2
Supports headphones and hands-free mode
Built-in 120 mAh battery
Call duration: 5 - 8 hours
Standby time: 6 - 10 days
Music playback duration: 5 - 6 hours
Wireless connection range: 10 meters
Operating temperature: -10 - 55 degrees
Signal-to-noise ratio: > 60 decibels Feature:
1. Fashion Design: Fashionable sunglasses + wireless headphones, suitable for driving, cycling and hiking. 2. Eye Protection: Black polarized smart lenses can filter out light and protect your eyesight. 3. Ultra-lightweight: Made of ABS and PC materials, making it more comfortable to wear. 4. Strong Compatibility: Compatible with Smart 1 Connect 2 functions, with extremely low power consumption when wirelessly connecting two mobile phones. 5. Multi-functional goggles: Foldable design, equipped with long-shaped lenses and 270-degree rotation function. Explanation:
The fashionable wireless headphones not only have the function of multi-functional goggles, but are also very suitable for outdoor cycling activities.
Specifications:
Charging status: After continuous playback for 5 hours, only 2 hours of charging is needed.
Frequency response: 20 - 20 kilohertz
Signal-to-noise ratio: 87.2 decibels
Material: The frame is made of high-tech nylon, with high strength.