Hi Angela, welcome to planDisney!
MagicBand+ recently launched at the
Disneyland Resort and I'm so excited to experience it! Just liked you mentioned, you'll be able to use your MagicBand+ check-in at
Lightning Lane entrances, enter the parks, and enjoy enhanced experiences, such as having your MagicBand+ glow with different colors and pulses with haptic vibrations during various nighttime spectaculars, and even acting as your guide as you seek virtual bounties hidden across Black Spire Outpost during Star Wars: Batuu Bounty Hunters!
But to answer your question, a MagicBand+ can only be assigned to one ticket or pass at a time. This means both you and your 3-year-old would need your own MagicBand+ to scan in at Lightning Lane entrances.
If you need help setting up your MagicBand+, please take a look at the
Disneyland Resort website here! It has step-by-step instructions and great video tutorials to really make the setup process smooth and easy peasy!
If you have any more questions, please visit us again!
See ya real soon!
Jin