It's very easy! Fine tuning for all bassists. TN-1B is tuning meter only for a bassist. It detects the pitch of notes that picked up by a microphone, and it displays the difference from the right pitch. ◆It's very easy to use. ◆High-precision, high-performance. ◆Supports tuning-sets below. ・Standard ・Half Step Down ・Full Step Down ・1&1/2 Steps Down ・Drop-D ・Drop-D(half step down) ・Lowered Cello ◆Supports five or six string bass. ◆It has a simple drum machine function. ・The rhythm pattern that you made, you can send to your friend by AirDrop or email. ・And also the data is a common use with TN-1G(guitar tuner), you can share the rhythm pattern with the guitarist of your band. ◆You can change reference pitch-A between 438Hz and 445Hz. ◆You can change note notation language. ・English(C, C#, D, E… , B) ・Italian(Do, Do#, Re, Mi… , Si) ・German(C, Cis, D, E… , H) ・French(Ut, Ut#, Ré, Mi… , Si) ・Chinese(C, 升C, D, E… , B) ◆TN-1B has a tuning fork of reference pitch-A.