The AW-LT100 provide stunning battery life with approximately 100 hours of operation using a single AAA battery. The body's lightweight design features triangular shuttle switches that allow intuitive operation. In addition, the AW-LT100G uses a specific circuit that's been pared down to the essentials, delivering even faster meter response. KORG's AW-LT100 line of clip-on tuners will get in you tune faster and keep you in tune longer than any other clip-on tuner!