This handy little duck not only squeaks to let let people know that your there but also lights up! The duck is easy to attach to any frame due to its elasticated strap. Just give it a squeeze once or twice to select the mode, steady light or flashing and the LED light will light up your way. Perfect for a bike, scooter or even a backpack. Waterproof and easy to use this little duck really makes a great gift for any little boy or girl. Batteries are included, should you need to replace them the duck takes 2x DL/CR 2032. Please note that this is not suitable for children under the age of 3 years.