The product has a percussion rhythm function: TAP function, can accurately test your own heart or a song , has two-channel headphone output.

Features:
The back of the product has a clip and lanyard hole results designed to facilitate the fixed.
sound unit, sound is loud and the sound is .
Adjustable control.
Stereo earphone jack is available.
Tap function enables you to test your tempo or tempo of a track.
Multi-functional and professional metronome is lightweight and portable, easy to use.

Specifications:
Color: yellow, blue, red, white, black (optional)
: 30-280bpm
changes: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Accuracy: plus or minus 0.001 (thousandth)
adjustment: maximum , medium , minimum , mute
: 1 * CR2032, 3V, 240mAh (not included)
Item size: 130 * 56 * 32mm / 5.1 * 2.2 * 1.3in
Item weight: 23g / 0.8ounce
Package size:130 * 80 * 40mm / 5.1 * 3.1 * 1.6in
Package weight: 33g / 1.2ounce

Package list:
1 * Metronome
1 * User Manual