1. Suitable for guitar and 2. Fast, accurate tuning from 435 to 445Hz 3. 180 rotatable hinge 4. Power saving mode and automatic shutdown 5. Bright, colorful display A designed clip-on guitar and bass tuner FT-01 is the perfect tuner for your daily use.A bright and colorful display, intuitive interface, and a mechanical hinge with a rotatable display keep things easy-to-read in any position. Model Number: FT01 Power: 3V lithium cell (CR2032) Dimensions: 57 mm(L)X27mm(W)X8mm(H) Weight: 0.025KG color:White + black :ABS Package Contents: 1 x Tuner Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.