We offer kinds of tuner for Chromatic, guitar, bass, violin and piano, when you need, please contact me. Thank you. Model ET-2005 Items of function Guitar and Base Features Fashionable design, high sensitive and precision for tuning Specification A4 tone frequency range: 430-450Hz Size: 92x53x17mm Weight: 40g Packing: Giftbox packing, 100pcs/carton Color black Accessory Instruction sheet, AAA ...