fun times slap band watch silicone slap bracelet with watch face.telling the time has never been so fun! batteries required: 1 x cr2016 lithium (included). recommended ages 8+ WARNING: this product uses/contains button or coin cell batteries. a swallowed button or coin cell battery can cause internal chemical burns leading to death in as little as two hours. dispose of used batteries immediately. keep new and used batteries away from children. if you think batteries might have been swallowed or placed inside any part of the body, seek immediate medical attention.