Rolly is a very sympathetic music player made by Sony. He has an egg shape and is able to dance using his two wheels that allow it to rotate and spin. This little robot also has two circular LED lights integrated around its edge and bowl-shaped caps at both ends. All its movements can be synchronized to the music played. The idea for combining music with dance into a small machine sees the wide world on August 20, 2007,when Sony initiated an advertising program. Rolly went on sale in Japan on September 29, 2007.
Rolly has Bluetooth functionality together with few other operating modes. He (I perceive it as “he/him”, no idea why) has 2 GB flash memory for a music storage, but he is also able to stream music from any other Bluetooth-enabled device such as computer or cell phone. Rolly Choreographer software analyzes tracks and creates motion files which navigate Rolly’s dance. On Rolly Go you can find pre-made motion files.
The G force sensor in Rolly detects if the player is laying horizontally or is picked vertically. While in vertical position the track can be controlled by the top wheel and the bottom wheel controls the volume.