Features:- Professional guitar and bass tuner- LCD display, easy to read.- Powered by 6F22 9V battery (not included).- Low battery check LED.- Auto and manual tuning mode.Frequency Response: 20Hz~20KHzBass: +-12dB at 60HzMiddle: +- 12dB at 500HzMiddle 2: +- 12dB at 1.2KHzTreble: +-12dB at 1.2 KHzPresence: +-12dB at 8 KHzMid2. Control: 600Hz~2KHzTuning note: Chromatic / Guitar ModeChromatic & Guitar Tuning Mode (7B/6E/5A/4D/3G/2B/1E)Pick-up: Piezo Ceramic Pick-upPower: 6F22 9V battery (not included)Color: BlackPickup Size: Approx. 98 x 58 x 40mmAfter Sales Service: 1 Year WarrantyPackage Weight : 150 G / 5.29 OuncesPackage Dimensions (L*W*H) : 170*135*35 MM / 6.69*5.31*1.38 InchesRetail Packaging: No, No PackingPackage Include:1 x Band Pickup (with Accessories)