The new Electro-Harmonix Clip On Tuner provides a compact and convenient tuning device for musicians with a broad range of tuning modes: Chromatic, Guitar, Bass, Violin, Ukulele C and D. It features:
• A bright, easy-to-read LCD display
• Tuning range: A0 (27.5Hz)~C8 (4186.0Hz)
• A4: 430Hz~450Hz
• Flat tuning: ♭, ♭♭
• No-mar pads
• Power: 3V CR2032 battery
Check out the compact, affordable EHX Clip On Tuner here.