The Intelli IMT-301 is a digital metronome, tuner and thermo-hygro meter all in one. Metronome functions include accented and subdivided beats, LCD simulated pendulum motion, additional LED beat lights, two memory settings, and a tempo range of 40 to 216 beats per minute. Tuner functions include A-430 to A-449 calibration, LCD simulating a needle meter, an 8-octave range, and 88 chromatic tone generations within full calibration range. The thermo-hygro meter has a temperature range of -14F to +140F, and a humidity range of 25% to 90%. It also features a volume control and an earphone jack. The battery is included.