Feature 1[Polarized Lenses] Blocking up to 99% of UVA and UVB rays coating, high efficiency filtering of ultraviolet rays, excellent optical performance, blocking harmful light sources, suitable for daily wear. 2[Open Ear Type] Pay attention to the surrounding environment while enjoying music, suitable for cycling, running, driving, fishing, playing basketball, shopping and other outdoor activities. 3[HiFi Stereo] Dual speakers, stereo, intelligent noise reduction microphone, reduce call noise, built in 100mAh rechargeable lithium battery, 1.5 hours of charging, continuous music for about 6 hours. 4[Touch Control] Control by two touchpads located on both sides of the glasses frame or using voice function, completely free hands, waterproof and dustproof, with stable compatibility and connectivity. 5[Low Loss] Bluetooth 5.0 plus independent sound decoding chip, CD level sound decoding, support 16bit, 24bit sound, sampling rate up to 48kHz, reduce sound quality loss, preserve music details.Item Type: Bluetooth SunglassesFrame Material: TR90, Mixed MaterialLens Material: PC, TACModel: KY02SBluetooth: 5.0Channel: Dual Speakers, StereoBattery Capacity: 100mAh Lithium Battery (Delivered with Battery)Charging Time: 90minCharging Voltage: DC5VUse Time: 6 HoursFrame Color: BlackLens Type: Polarized LensControl Method: Touch .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Bluetooth Sunglasses1 x Charging Cable1 x Glasses Cloth1 x Manual