SAN DIEGO--(BUSINESS WIRE)--Pulse, a Technitrol Company (NYSE: TNL), a worldwide leader in electronic component and subassembly design and manufacturing, announced the introduction of its new high-quality hearing aid component, the DCU Scroller. Designed for both behind-the-ear (BTE) and in-the-ear (ITE) hearing devices, the new volume control has a housing diameter of just 3.8mm (0.15 in.), enabling simple, discreet volume adjustments to the hearing device. The new digital control unit comes with a lowered flange for BTE mounting and a flush flange for ITE mounting.