For best results, please read this manual carefully before use. Keep the manual for future reference. BATTERY CARE. 1. Ensure that the polarity is properlyMUGIG T-1 CLIP-ON Tuner for Guitar, Ukulele, Bass and Violin - $6.99. FOR SALE! Supports multiple tuning : Chromatic, Guitar, Bass, Ukulele, Violin. You'll be delighted to know that this tuner comes with a two year guarantee (see below for further details). Instructions for use. Press the On/Off button to