3-in-1 Digital Guitar Tuner - Professional Clip-On Tuner, Metronome & Tone Generator - Works w/Guitar, Bass, Violin, Mandolin, Ukulele, More - Acoustic & Electric - LED Display. 3-in-1 DESIGN - Compatible with Guitar, Bass, Violin, Mandolin, Ukulele & more! Battery Included. TUNER - Clip Mode & Mic Mode for fast, accurate, & highly sensitive tuning w/ large LED backlit display. Chromatic tuning range of 435 - 445Hz. METRONOME - Select from multiple rhythms, tempos, meters, & volume settings - including a silent LED Visual mode w/ BPM range of 30 - 250 bpm. TONE GENERATOR - Manually select any pitch to hear an audible tone. Fine tune your ear by using audible tones to tune your instrument. 3-YEAR MANUFACTURER WARRANTY  100% Satisfaction Guarantee. If you arent satisfied for any reason with your guitar tuner  contact us and well issue you a full refund. No Questions Asked.