When you're looking for a chromatic tuner that's great for brass and orchestral band use, you simply can't go wrong with the Korg CA-2. Korg's a known leader in utlra-stable tuner technology. And here, with the Korg CA-2, they've managed to take a best-seller (the CA-1), update it, enhance it, and offer it to all of us musicians at an even lower price. You get the super-accuracy Korg tuners are known for, complete with adjustable calibration, a wide range of pitch detection, and helpful reference tones from the internal speaker when you need them. Better yet, the display has been enlarged to be much easier to read. And with 200 hours of continuous use via the battery, you can tune for days.