SyncDancing is an ultra-miniature music player for ballroom dance practice that you wear in your ear like an earphone. In addition to metronome functionality, it has 20 built-in standard ballroom dance songs, so you can practice at any time while listening your favorite dance songs. This one unit provides everything you need for improving your dancing skills, sharpening your sense of rhythm, and becoming familiar with dance songs. You can practice by yourself, or synchronize the tempo via infrared so that two people can each wear a unit and practice together. SyncDancing is a unique style of music player and metronome that you use by wearing it directly in your ear. Since the speaker unit fits directly in your ear, you can practice dancing with the correct rhythm while hearing the music directly in your ear. Because you can concentrate on the sound without being distracted by nearby sounds, this is ideal for personal practice at home as well as for practice in a large dance studio or hall. SyncDancing is extremely small and lightweight, so you can dance without any distraction. The keys to improving your ballroom dance skills are to acquire steps and technique, nurture your sense of rhythm, and become able to express yourself by dancing to the music. With SyncDancing, you can experience rhythms and music anytime and anywhere for effective practicing. A total of twenty standard songs for ballroom dances such as waltz, tango, rhumba, and cha-cha-cha are built-in, and you can play them back while switching between the metronome and the song (*). Each of the internal songs was created by a professional arranger who actually produces music CDs for ballroom dance. The tone generator section also takes advantage of KORG's many years of experience in developing synthesizer technology, packing a high-quality sound engine into the smallest possible size. Since these songs play back as SMF, you can freely change their tempo. With SyncDancing, you can enjoy serious dance practice with CD-quality songs. SyncDancing supports not only individual practice but also practicing dance as a couple. Simply click two SyncDancing units together and press the sync button to synchronize the tempo and timing via infrared (*1). Even while wearing the unit directly in your ear, both partners can practice while hearing exactly the same tempo. The timing (delay) from the moment of synchronization until playback begins can be set in a range of 0--90 seconds (*2). This gives you flexibility to meet the needs of various situations. For example you can specify a shorter delay if you're synchronizing the units and then immediately starting a lesson, or use a longer delay if you need time to get into your position in a large hall. The SyncDancing features a jog switch on the side of the body, allowing you to easily change the settings without removing the unit from your ear. Using the jog switch you can select not just the tempo setting, but also the song or volume. This provides a compact yet highly intuitive method of operation. The mode select / power button, sync / mute button, and an LCD display that shows the tempo and other information are located on the inside of the body.SpecsTempo Range 30 - 252/min (BPM)Beat Settings 0 - 9 beatsRhythm Settings Quarter Notes, Duplets, Triplets, Triplets with inner beat omitted, Triplets with the third beat omitted, Quadruplets, Quadruplets with middle beats omitted, Quadruplets with the third and fourth beats omitted Songs 20 songsVolume Settings 4 levelsDelay Settings 0, 5, 10, 15, 30, 60, 90 secondsTone Settings Metronome, Metronome and Voice Counts, Voice CountsTempo Accuracy +/- 0.1Synchronization Communications Method InfraredSpeaker 13mm Dynamic SpeakerSwitch Controls Mode/Power, Sync/Mute, Jog Up/DownDisplay Modes Song, Volume, Delay, Tempo, Beat, Rhythm, SyncPower Supply CR2032 lithium battery (3V)Battery Life Approximately 5 hours (continuous use at Tempo = 120, Beat = 4, Rhythm = Quarter Notes, Volume = Low)Dimensions (W x D x H) 49 x 22 x 22 mm / 1.93” x 0.87” x 0.87”Weight 10 g / 0.35 oz. (including battery)Earphone Diameter 16 mm / 0.63"Included Items CR2032 lithium battery (3V), Ear Pad, Carrying Case