Sphero's Rolling Robots Gain A Tiny Display And The Ability To Roam In Packs
Sphero - Mini Bluetooth Speaker with Microphone (2 Watt) [TGY-E223]- US$15.21 - PlusBuyer.com
Amazon.com: Sphero SPRK+: App-Enabled Robot Ball with Programmable Sensors + LED Lights - STEM Educational Toy for Kids - Learn JavaScript, Scratch & Swift : Toys & Games