Phonic disruptor

A sonic disruptor stunned opponents, among other powers. Mrs Wormwood had one in the form of a ring which she used to combat her fellow Bane and put Gita Chandra in a trance. It only stunned the Bane. She complained that after Mr Smith put her in a containment vortex that this drained the ring's power. (SJA: Enemy of the Bane)