Lavoli's birthday gift candy is simple to operate. The clearly defined functional zones of our sound lollipop makes itself easy to operate for anyone. More importantly, Lavoli's happy birthday candy is alsouser-friendly to people with conductive hearing loss, allowing them to hear as ordinary people. Lavoli provides four different versions of birthday lollipops to meet your needs: Advanced Version, Personalized Version, Enterprise Version & Suit Version. Lavoli can bring sweetness, pleasure, and happiness, making it a favorite food for all mankind. There must be one version to match your choice for a birthday gift.