?<strong>Features:</strong> <br> Made of alloy£¬ strong and durable. <br> TCapo20 is not only a professional capo but also a professional tuner. <br> Tuner with high sensitivity£¬more accurate£¬precise£¬convenient and rapid. <br> The tuner detects sound automatically£¬ and shows the note name accordingly. <br> When the note name shown on the screen stay the same as the sound from your instrument£¬ and the accuracy bar points to calibration "0" vertically£¬ and the LED light turns green. <br> If no operation or no signal input for 30 seconds£¬ it will turn to power-saving mode automatically£¬ and the back light will be off. When there is operation or signal input£¬ the back light will be on again. <br> Perfect for acoustic guitar and electric guitar. <br> <br> <strong>Specifications:</strong> <br> Material: Alloy <br> Color: Coffee and Silver (Optional) <br> Tuning item: <br> a.Tuning under spcial key: C(Chromatic) <br> b.String instrument tuning: Guitar(G) Bass(B) <br> Tuning range: A0(27.5Hz)---C8(4186Hz). <br> A4 calibration: 430Hz---450Hz <br> Tuning mode: clip <br> Tuning Accuracy: ¡À0.5cents <br> Power Supply: 1 piece 3V CR2032 ?(not included) <br> Item Size: 7.5 * 1 * 11cm / 2.9 * 0.4 * 4.3in <br> Item Weight: 77g /2.7oz <br> Package Size: 10 * 2 * 10cm / 3.9 * 0.8 * 3.9in <br> Package Weight: 94g / 3.3oz? <br> <br> <strong>Package List:</strong> <br> 1 * Capo Tuner <br> <br> <strong>Note:</strong> <br> The battery is not inclueded. <br> LCD showing begins weak or unclear£¬ please replace new battery and insert them again in 10 seconds.