Double Robotics Telepresence Robot For iPad Tablet is an iPad stand on wheels. Double enables a revolutionary new level of interaction with other people. The iPad connects to Double via Bluetooth and the iPad’s camera and microphone provide video and audio to the controller. It is compatible with iPad 2, iPad 3rd generation, iPad 4th generation and iPad Air. Also, the internal rechargeable lithium ion battery provides up to 8 hours of normal use.