Brand Musedo Model T-29G Quantity 1 Piece(s) Color Black Material ABS Compatible Models Guitar Application Tone tuning Other Feature 1" LCD display; Tuning range: A0 (27.5Hz) ~C8 (4186Hz); Tuning item: Guitar; Tuning accuracy: +/1 cent; A4 range: 440Hz; Pickup method: Clip-on; Pickup mode: Auto; Powered by 1 x CR2032 (included); Intelligent nonbutton clipon tuner. Builtin buzzer pickup for noninterference tuner. Auto power on once clipped onto a headstock;Auto power off when removed from the headstock. Auto power off after 5 minutes without any operation Packing List 1 x Tuner 1 x CR2032 battery