This is a portable universal tuner for tuning saxophone, clarinet, trumpet, flute. Adjust the accuracy. This tuner is a for you to save your instruments. one before running out of consumables. Easy to use, compact and portable. Features -Color:Black -Material:ABS, plastic - Size: 10.00X6.30X1.80cm/3.93X2.48X0.71in - Size: 120.00X2.20X1.80cm/47.16X0.86X0.71in - Note: Without battery(2 x AAA battery). - A4 range: 430-450HZ - Product beat: -/4; 1/4; 3/4; 4/4; 3/8; 6/8 - Mode: Sound tuning mode; beat mode; and sound tuning mode - Beat error: <1% - Pitch error: 0.1% - Power supply: 3V - You can a variety of tuning modes. Flexible adjustment of multiple angles. - The tuner has excellent material, appearance, portable design, and can be used with . - It can be easily clipped onto the instrument or placed on the flat surface for tuning. - The design is simple, but it is very practical to use, which brings you great convenience. - Excellent craftsmanship details and good texture will ensure its durability and practicality. Package list: 1 x tuner 1 x pickup clip