Smart Glasses Bluetooth Headphone Hands-Free Calling

SPECIFICATIONS   With Microphone: Yes   Wireless Type: bluetooth 5.0 Waterproof: No Volume Control: Yes Vocalism Principle: Dynamic Type: Smart Glasses Wireless Headset Talking Time: About 5 Hours Sensitivity: 120dBdB Resistance: 32ΩΩ Playing Time: About 6 Hours Model Number: Smart Glasses Wireless Headset Lens: Sunglasses Is wireless: Yes Function: For Internet Bar,Common Headphone,For Mobile Phone Endurance Time: About 7 Days Control Button: Yes Connectors: 3.5mm Communication: Wireless Charging Time: About 1 Hours Certification: CE Active Noise-Cancellation: No