This wind instrument tuner is made from durable and safe materials, ensuring a full-bodied, authentic sound. It can greatly improve the sound you play. Fine workmanship and . With this wind instrument tuner, it can bring much help to you. Features Color: Black Material: ABS, plastic Size: 10.00 x 6.30 x 1.80 cm / 3.93 x 2.48 x 0.71 in Size: 120.00 x 2.20 x 1.80 cm / 47.16 x 0.86 x 0.71 in Note: Without battery (2 x AAA battery) A4 range: 430–450 Hz Product beat: -/4; 1/4; 3/4; 4/4; 3/8; 6/8 Mode: Sound tuning mode; beat mode; sound tuning mode Beat error: 1% Pitch error: 0.1% Power supply: 3V The product is made of safe materials and has excellent durability. A variety of tuning modes can be switched for use. High sensitivity tuner, providing accurate, convenient, and fast tuning. The wind instrument tuner can be clipped to most instruments. Small, convenient, and portable. Easy to adjust, convenient and practical, helping you practice and perform better. The wind instrument tuner is light in weight, easy to carry, and does not take up space. Package list: 1 x Tuner 1 x Pickup clip