The CTA7700 features a tactile Transducer that can be Clipped onto most instruments including electric/acoustic guitars, basses, horns, and woodwinds. Any pitched instrument that vibrates can be tuned with the CTA7700. The CTA7700 also features a Microphone, allowing it to tune instruments without making direct contact.

The CTA7700's large blue LCD screen is easy to read and allows for simple navigation through its four operating modes: Chromatic, Guitar, Bass, and Violin. Intuitive controls access advanced features like a Chromatic Pitch Pipe, Flat Tuning Mode, and Calibration.