Guitar Tuner From Shop Unite Offers Mini Clip on Guitar + Instrument Tuner, Acoustic and Electric Guitar, Bass, Ukulele, Banjo, Violin, Chromatic Setting, LCD Colour Screen, Always Stay in Tune Now! USER FRIENDLY: Pop in the battery, long press the power button to turn on and off and you're ready to get started! Short hold on the power button to change settings from chromatic, guitar, bass, violin and ukulele. Advanced users, choose between 430Hz-450Hz. Beginners, just stick to 440 and you'll be fine to start rocking! FAST + EFFICIENT: When in tune, the whole LCD screen will flash green, with the needle directed in the middle. When out of tune, the needle moves to the left or right depending on increase or decrease of pitch needed. Needle to the left, your note is too low. Needle to the right, your note is too high. Easy as pie! SUITABLE FOR ALL USER-TYPES: Seasoned musicians, amateurs, intermediate players, those who play for fun, teachers and others alike: you're all welcome to get in on the fun! There's no reason for you to not sound your best. Use it for yourself, pass it around during a jam session, or help your student(s) stay on point: it's effective in any context! COMPACT + CONVENIENT: The small size makes it easy for you to carry with you wherever you go! Tuck it into your instrument case when you're on the road, pop it into your bag if you're travelling or using it for fun. Don't worry about needing to plug in any wires or losing battery. Battery is included in purchase and our battery-saving mode will help you keep it in use for longer! 1 YEAR WARRANTY: In the unlikely event that there is a problem with our product or service, simply advise us of such and we will happily replace and/or refund our product within the first year of purchase.