Duracell DL2032. Energizer ECR2032. (hence the part number 2032!). 3V CR2032 Battery. Suitable for most guitar tuners.
Snark ST-8 Titanium Guitar Tuner Rechargeable Battery Noise Blocking
Comprehensive 6-Piece Guitar Tuner Replacement Kit – Ideal for Classical Guitars
Muso Pro Clip On Guitar Tuner,5 Free Picks and Battery, Chromatic Tuner, Electric Guitar Tuner and Acoustic Guitar Tuner, Chromatic Ukulele Tuner for Guitar Accessories and Bass, Violin.
Havendi Clip-On Tuner I Guitar, Bass, Violin & Ukulele Tuner I Precise Tuning with Color Display & 360° Rotation I Includes Battery – Chromatic Guitar Tuner for Musicians
ENO 20537 Clip on Guitar Tuner Clip on Ukulele Tuner Bass Tuner Violin Tuner Chromatic Tuner with Battery Included
