Type: Smart Sunglasses with Bluetooth headset function Bluetooth distance: 30 feet Bluetooth version: V5.0 EDR Standby: 150 hours Frequency: 20Hz-20KHZ Wearing method: Head-mounted Mode of operation: Push button Communication function: Support Compatible platforms: Android / ios Applicable platform: Fully compatible Charging method: USB charging Input voltage: 5V / DC 500mA(max) Continuous talk time: about 4-5 hours Lens material: Resin, polarizer, resistant UV400 Lithium battery: Built-in 200mA polymer lithium battery Playing music: About 3-4 hours Earphone power: 32/0.5W Net Applicable people: Business, old people, adults, fashion, the public Product Highlights: IP7 Waterproof: Favorable waterproof effect which can easily resist sweat and rain. integrated AI voice control, you can access navigation, phone, music, etc. without hand operation. UV400 polarized len: Suitable for beaches, skiing, mountain climbing, golf and other outdoor activities. External expansion channel: It avoids the damage to the ears caused by wearing headphones for a long time. Privacy protection: directional audio technology ensures that your talking content will not be heard by anyone other than you. Light weight: It can be used for a long time without pressure on the ears. Fashionable appearance: Classic Sunglasses are designed to add highlights to your dress.