The follows straps are very new straps with Tuner in the world,this tuner canget the tone from two way,one is from the vibration on the guitar bodyother one is from the Mic.when you first to press the ON/OFF,the CLIP will display on the windowthen the tuner will get the tone from the vibration,you must stand up tokeep the strap top press close to the guitar body,like that can get thevibration from the body.when you second to press the ON/OFF,the Mic will display on the windowthen the tuner will get the tome from Mic.you use the MODE to chose the different musical instrument, G:guitarB:bass, V:violin, C:chromatic

Tuner straps B1-T