Bullet Points: 1. Cartoon helmet and propeller yellow duck design, very cute; can not be charged, you can replace the button battery. 2. 12 lumens yellow light, 45 decibels sound, squeeze the duck to make a sound; there are 2 light modes, always bright and flashing. 3. Easy to install, just clip it on a bicycle or scooter and helmet. It comes with a bicycle bell and light function. 4. This product is suitable for a variety of occasions, a variety of features, cute design to make children happy; can play bells and decorative effects on the bicycle, baby stroller baby happy, car decoration effect, office relaxation decompression toys.