The K-Bow from Keith McMillen is a Bluetooth enabled bow for the violin, viola, cello and bass, which is constructed of Kevlar and graphite. While the K-Bow may look similar to a normal bow, it’s actually a real-time controller that will allow you to manipulate the sounds coming out of the stringed instrument for which the bow is being used. The bow has sensors for grip, bow tension, force, angle, and more. The sensor data is used with the included software to translate to MIDI or for live looping, reverb, etc. The K-Bow is available now at prices starting at $2995.00.