Brand: Fzone - Model: FMT-2011 - Quantity: 1 - Color: Black - Material: Nylon + Plastic - Large LCD display - Backlight: Green - Compatible Models: Twelve tones / guitar / bass / violin / ukulele - Application: Tuner - Tuning mode: Clip or microphone - A4 frequency: 420~460Hz - Tuning range: A0(27.5Hz)~A6(1760Hz) - Tolerance: + / - 1cent - Voltage: 3V - Beat speed: 30~280bpm - Beat: 0~9beat - Super anti-interference - Handy compact digital clip-on style - Tuner picks up the sound by vibration - Easy to clip onto any stringed instrument - Sensitive and stable - Packing list: - 1 x Tuner - 1 x 3V CR0232 Li-ion battery - 1 x Chinese and English user manual