Strum, check, tune, play. This makes it easy, as you can see which string is out (hit: it's always the G) and then tune accordingly. Nice big clear display, true bypass... it just works.

Model: TC Electronic Polytune
Made: Thailand, recent model (serial 13751542)
Type: tuner
Power: standard 9v negative supply or 9v battery
Equivalent new street price (approx): $189aud
Mods: none
Accessories: original box and manual
Condition: used, no major marks, fully functional. Overall: excellent condition