Also known as the Nagoya harp. Originally developed in the early 20th century by Goro Morita it uses a series of spring-loaded keys to fret strings tuned to a chromatic scale, inspired by the keys of a typewriter. This Ran series model has built-in magnetic pickup, tone and volume controls and a built-in tuner.
Fresh battery added, tested, works good. Not tuned.
Fresh battery added, tested, works good. Not tuned.