Features: 100% Brand New and High Quality. It is easy to wear. Our goods can be used on both Indoor & Outdoor Night Shows & Activities. Our products are best use for every age group. Has battery case controller switch button. When you press the button, you would find the light has Four modes: constant light, slow flashing light and continuous quick flashing light and shut off. The white or Black frame: Plastic Glasses: AC Wire: PVC Frame Width:Appeox 14cm Frame Height:Approx 5 cm Power: 1.5V 2 x AA batteries (not included) Attentions: Do not pull the cable between the glasses and the controller hard and frequently or it may fall off the glasses. Be sure to use the controller fixed, rather than free hanging, and the cable is not stretched tight. Packing include: 1 x EL Wire Glasses 1 x Standard Battery case Controller