GuitarSense GS-T1 - Guitar Tuner Clip on for Acoustic & Electric Guitar, Bass, Ukulele & Violin SO EASY to use, FAST & ACCURATE TUNING with High Resolution Multi-Color Display SOLID and Sturdy MULTI-AXIS rotating mechanism for Easy all- round Viewing, no breakable ball-and-socket parts WIDE FREQUENCY RANGE sensitivity for Guitar, Bass, Ukulele & Violin with special Chromatic Mode for non-standard tuning COMPACT and PORTABLE - Clips neatly on to front or back of instrument headstock ONE button operation - a child can use it - Complete with battery and User Manual