It's very easy! Perfect pitch 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 ・Lowered Cello ◆It supports five or six strings bass guitar. ◆It has a simple drum machine function. ◆You can change reference pitch-A between 438Hz and 445Hz. ◆You can change note notation language. ・English(C, C#, D, E… , B) ・German(C, Cis, D, E… , H) ・Italian(Do, Do#, Re, Mi… , Si) ・French(Ut, Ut#, Ré, Mi… , Si) ・Chinese(C, 升C, D, E… , B) ◆TN-1B has a tuning fork of reference pitch-A. TN-1B will support tuning of your bass until the day you hire an instrument technician. Tested devices Pixel 7a [Android13] Xperia1(SO-03L) [Android11] Permissions RECORD_AUDIO: It is necessary to use the microphone. INTERNET: It uses to show webview. AD_ID: It uses to show ads.