A digital Metro Tuner and Thermo Hygrometer all in one * Metronome functions include accented and subdivided beats, LCD simulated pendulum motion, additional LED beat lights * Tuner functions include A-430 to A-449 calibration, LCD simulating a needle meter, an 8-octave range * The thermo-hygrometer has a temperature range of -14F to +140F, and a humidity range of 25% to 90% * Battery included