Plen was released by Systec Akazawa in Japan in 2006 as a humanoid desktop hobby robot designed to perform for its owner's entertainment. It is very easy to assemble, program, and control via mobile phone or PC with Bluetooth.
Features:
18 degrees of freedom (DOF) in 18 movable joints
20 pre-installed motions
Can “roller skate” and pick up/toss a cube
Bluetooth-enabled
Height: 23 cm; Weight: 0.5 kg
32-bit ARM processor
Can be controlled via mobile phone or PC with Bluetooth