A guitar tuner quickly checks if each string is tuned correctly, either by vibration (clip-on, attached to the headstock of the guitar) or via microphone/jack (desktop or pedal tuners, used on stage due to ambient noise). The Gewa CLP-1 and CLIP-2 clip-on tuners are the best-selling items in the store — compact, inexpensive, and accurate enough for practicing at home; D'Addario and TGI offer similar options, while Boss and Korg cover the segment of tuners with larger screens, suitable for studio use. For the metronome — the device that keeps a constant beat, essential for practicing — the choice is between the digital version (sometimes integrated into phones or some tuners) and the mechanical version with a visible pendulum, such as the classic Wittner series, appreciated by music teachers for its distinct sound and because it does not require batteries. Wittner pitch pipes remain the choice of teachers and instrument tuners for the 440 Hz reference. There are over 260 products in the category, from accessories at an affordable price to professional studio tuners.
