【Upgrade button】: sliding button design, no need to keep pressing the button.
【Convenient charging】:no need to install batteries, charging via USB plug, convenient charging. and also makes them very excited.
You can mark the key points of your speech ppt.
【Reasonable design】:small size, easy to carry, you can easily put the interactive toy in your pocket or school bag, and use it anytime, anywhere to increase convenience.
It's also very useful for field rescue and exploration.
