Historically known for its full coverage headset design, David Clark has developed a new “rest-on-ear” headset with hybrid electronic noise cancellation. It uses “advanced feed-forward and feed-back technology” for its active noise reduction. The DCPro-X uses dual voice coil drivers to ensure the headset will operate in the event of battery loss or system failure. The new headset also incorporates digital signal processing for improved audio fidelity. Bluetooth connection interfaces with cell phones, tablet computers and other personal electronics. It’s powered by two AA batteries with an estimated 50 hours’ operation.