Boston   chromatic clip tuner, with multi colour display, auto power on/off

Boston   chromatic clip tuner (also G+B+U+V), with full colour display, 430-450Hz

Boston   chromatic clip tuner (also G+B+U+V), with full colour display, 430-450Hz, violin clip

Boston   chromatic clip tuner (also G+B+U+V), with touch screen display, 430-450Hz

Boston   deluxe chromatic tuner with metronome, chord computer and pitch generator, 2640 memorized chords

Boston   clip on tuner pick-up, 90 cm. cable, standard 6.3 mm. jack plug

Rotosound   Chromatic tuner

Rotosound   Chromatic metronome tuner