The toothbrush features a round head with Extra Soft bristles, designed for gently cleaning children's teeth. The round head surrounds each tooth individually, helping to clean tooth surfaces and remove plaque. The soft bristles are suitable for the sensitive teeth and gums of young children.

The Pro Kids 3+ features a Gentle mode, which is specially designed for children's teeth and gums. Oral-B states that the children's range has been designed to be gentle even in cases where children have loose teeth or sensitive gums.

The built-in 2-minute timer helps the child follow the recommended brushing time. The device reminds them of the brushing duration and helps the child develop a consistent daily routine. In certain Pro Kids versions, the timer also provides reminders every 30 seconds to change brushing area.

The toothbrush can be paired with the Disney Magic Timer by Oral-B app, which turns brushing into an interactive activity. The app uses characters and digital rewards to encourage children to brush for longer and develop better oral care habits.

The handle features a design inspired by Marvel Spider-Man, adding a child-friendly and fun element to everyday use. Depending on the packaging version, Spider-Man stickers may be included for customizing the handle.

This specific Pro Kids version is rechargeable, so there is no need to replace batteries after they run out. The packaging of the corresponding version includes a rechargeable handle and charger.

The toothbrush head can be replaced, allowing continued use of the handle without needing to replace the entire device. This version includes 1 Extra Soft head in the basic package, and there are also separate Oral-B Kids replacement heads available.

The Oral-B Pro Kids Spider-Man 3+ version with the standard package includes 1 rechargeable handle, 1 replacement/attached Extra Soft brush head, and charger. Some packages are also available with a travel case or additional brush heads, so the exact contents depend on the product version.