Feature:1. Simple and up-to-date design, convenient to carry.2. Small compact product size, two buttons operation.3. Clip-on design with large opening for easily fixing on the instrument.4. Bright TFT color screen display, accurate and fast tuning with dynamic display.5. Built-in rechargeable battery, quickly charges with included cable.Specification:Features:Simple and up-to-date design, convenient to carry.Small compact product size, two buttons operation.Clip-on design with large opening for easily fixing on the instrument.Bright TFT color screen display, accurate and fast tuning with dynamic display.Dual 360 degrees & 180 degrees rotatable clip for best viewing angle.Built-in rechargeable battery, quickly charges with included cable.3 minutes auto power-off function saves energy.Tuning items including guitar, cello, saxophone, trumpet, etc.Specifications:Material: ABSTuning Item: ChromaticTuning Note: A, A#, B, C, C#, D, D#, E, F, F#, G, G#Detection Range: A0(27.5Hz)~C8(4186.00Hz)A4 Frequency Range: 410~460HzTuning Cents Indicator Range: -50~50 centTuning Accuracy: ±0.5 centPower Supply: Built-in rechargeable batteryBattery: 3.7V 90mAhCharging Time: Approx. 1.5 hoursDuration: Approx. 3 hoursAuto-off: 3 minutesCharging Voltage: USB, 5VItem Weight: 18g / 0.641ozPackage Weight: 47g / 1.67ozPackage Size: 11.5 * 6 * 3.3cm / 4.53 * 2.36 * 1.30inPackage List:1 * Tuner1 * Charging CablePackage List:1 * Tuner1 * Charging Cable