Fender AX-12 Chromatic Tuner

It now has a 9V adapter jack but still runs on batteries so you have a choice. It also has a sleek silver metallic finish, highly visible LED meter, 3 tuning modes, low-battery warning, and in/out jacks for line use. Features: Sleek silver metallic finish 9V adapter jack Battery or adapter powered Highly visible LED meter 3 tuning modes Low-battery warning In/out jacks for line use