"Specifications:Made of high-quality ABS material, the glasses are durable and lightweight.High-quality stripes can provide excellent visual effects and have a longer continuous brightness time at night. Normal adult size is comfortable to wear.It is easy to see and the light has no effect on eyesight.The cool and charming appearance makes you the star of the party.The glasses are ideal for parties, shows, carnival concerts and festivals.It can be used for indoor and outdoor night performances and activities.The separately designed battery pack and glasses can be easily installed in your pocketand fasten to your clothes or belts, bringing you a long-term pleasant experience without causing trouble. Item Type: LED GlassesMaterial: ABS, Electronic Components, SiliconeBattery Capacity: 180mah (Included)Charging Input: 5V 1ALight Beads: 0603 TypeLight Bead Quantity: 200 LEDsCharging Time: 1 HourWorking Time: about 5 HoursFeatures: Shutter Glasses, Durable, Rechargeable, Party Supplies ""all Products From Us Have Undergone Strict Quality Checks. if There Is Any Quality Problem Or You Are Not Satisfied With The Product contact Us. we Will Give You The Best Solution."""