Peterson has taken their popular StroboClip clip-on tuner and given it a slimmer profile, a redesigned clip, and a much higher-definition display. It has excellent battery life, an accuracy of 0.1 cent,  adjustable Hz calibration, and it comes loaded with over 50 of their exclusive Sweetened Tuning presets. The high-definition backlit display is visible in direct sunlight and features a wide viewing angle. The firmware is updateable.