Meet the LWA 4P: a robotic arm with 3 Powerball modules capable of offering 6 degrees of freedom. It can be combined with the SDH 3-finger hand to get things done. The robot arm offers a smooth, accurate performance. It can be battery operated, running for 8 hours without charging.
The LWA 4P has a weight/load capacity radio of 2:1. It is driven by brushless servos. More information is available here.