1Superior LED Lamp Beads: LED luminous glasses uses premium LED lamp beads, which have long life and excellent battery life. 2Premium Material: Luminous glasses uses premium acrylic as material, with excellent light conduct, transparent, scratch proof and anti breakage. 33 Modes: The flash mode of luminous glasses is divided into three designs, always on, fast flash, and slow flash, to meet the various needs of different scenes. 4Controllable Switch: Luminous glasses switch has high sensitivity, long life, and the new generation of switches is more user friendly. 5Widely Used: LED light luminous glasses are suitable for concerts, bars, K TV, dance and other entertainment scenes. 6Comfortable to Wear: Luminous glasses are lightweight and comfortable to wear, and will not hurt the eyes when worn for a long time. Specification Item Type: LED Glasses Material: Acrylic Size: Approx. 17x12x4.3cm / 6.7x4.7x1.7in Battery Type: CR2032 Coin Cell Battery x 2 (with Matching Battery Delivery) Battery Capacity: 150mAh Battery x 2 Package List 1 x LED Glasses 2 x CR2032 Coin Cell Battery Note Please allow some error in manual measurement.