Annadue Audio Sunglasses - Bluetooth 5.0 Built in Microphone Polarized Lenses

Specification: Item Type: Audio Sunglasses Product Material: PC Frame + TR 90 Front Frame + TAC Lens Glasses Color: Black Battery: Polymer​ Lithium Ion Battery (built In) Battery Capacity: 120mah BT Version: V5.0+EDR Transmission Distance: 10 to 15 Meters Frequency Range: 2402 to 2480mhz Charging Voltage: DC 5V Talk Time: 5 Hours Charging Time: 1.5 to 2 Hours Standby Time: 200 Hours How to Use: Take out the product according to the instruction manual PackageList: 1 xAudio Sunglasses 1 x USB Charging Cable 1 x Dust Free Cloth 1 x User Manual 1 x Storage Bag