Product name: smart sunglasses; 

Dimensions: 145x150x50mm / 5.70'' x 5.90'' x 1.96''; 

Color: black, blue, gold, gray, colorful; 

Material: PC (polycarbonate); 

Battery capacity: 200mAh; 

Charging time: 2-3 hours; 

Charging voltage: DC 5V; 

Music time: 3-4 hours; 

Talk time: 4-5 hours; 

Version B: V5.0; 

Transmission distance: 10 meters; 

Features: High-quality composite material that can filter UV rays, strong light, etc. to protect your eyes. 

Bluetooth 5.0 connection, stable connection to listen to music or answer calls. 

IPX7 waterproof, outdoor riding is not afraid of sweating. 

Can be fully charged within 2 hours, long standby time;