Feature:1. Bluetooth sunglasses, with open ear design, no eardrum damage, suitable for most people.2. It can eliminate glares, reduce eye fatigue, protect eyes, and make you have clear view.3. Sunglasses + Bluetooth headset design, you can answer/hang up calls, play/pause, previous/next song.4. You can enjoy wireless music to your heart's content, and handsfree calling can help you avoid the dangers of driving.5. With dual speakers and stereo sound effects, it is very suitable for driving, sports, and work.Specification:Item Type: Audio GlassesFrame Color: BlackFrame Material: PolycarbonateLens Material: TRXWeight: Approx. 145g / 5.1ozBluetooth Protocol: 5.0Charging Time: 90minBattery Capacity: 100mAh (Typical Value)Charging Voltage and Current: DC5VChannel: Dual Speakers, StereoBattery Capacity: 95mAh (Typical Value) (Built-In Battery).Package List:1 x Glasses1 x Manual1 x Data Line1 x Glasses ClothNote:1. Please do not dismantle or repair or modify this product for any reason, otherwise it may easily cause fire, electronic breakdown or even complete damage to this product2. Do not place the device in an environment that is too low or too high (below 10 or higher than 45)3. Do not let the product come in contact with liquid to get wet, or soak in liquid4. The glasses should not be exposed to the sun for a long time (such as in a car), otherwise they will be easily deformed, aging, and broken.5. Do not put the magnetic end of the charging cable close to metal objects to prevent the danger of short circuit caused by magnetically attracting metal objects.