DinoBryte LED Headlamp - T-Rex Headlamp for Kids | Realistic Roar Sounds REALISTIC ROARING SOUNDS - Press DinoBryte's jaw to turn on the light and unleash three roaring noises. Light stays on after roaring is finished. SUPER BRIGHT LED LIGHT - Light up the night with a super bright LED light powered by 3 AAA batteries (included). ADJUSTABLE STRAP - Adjust the head strap to fit any sized head from kids to adults. PROTECTED LED - Protecting lens focuses light where you need it while protecting the LED light.