FUNCTIONING PATTERN: Constant light, slow blink, flashing, push the button to change mode. 360 DEGREE OF ILLUMINATION: High-quality EL wire brings excellent visual effect and longer continuous glow time at night. ERGONOMIC DESIGN: Regular size and comfortable to wear. Good for adults and children, easy to see out of, and the lights have no impact on vision at all. The battery pack can clip to anywhere from the waist and up, it can easily be clipped to your belt or placed in your pants pocket. TROUBLESHOOTING: If its not light up, please use the brand new battery and place the battery in the right direction. Powered by 2 x AA Batteries (Not Included), APPLICATIONS: Bars, Clubs, Electric glow run, LED parties, Halloween, Costume Parties, Carnivals, Gifts, and more. Portable and easy to wear. Voltage DC3V. Push the button to change mode. Working frequency: 1k-18khz, the best working frequency is 5KHz. The static capacitance : 4 nf/m (20 ℃ RH < 80%). Specifications : Brand: Flo Package Dimensions : 20x10x4cm Product Material: Plastic Product Frame Colour: Black Light Colour: Green Package Contents: 1x Flo Flashing LED Luminous Sunglasses Age Recommendation : We recommend that a child be 12 years of age or older to use this product.