The BOSS DR-01S Rhythm Partner is designed for acoustic musicians who want an easy, organic-sounding rhythm companion—whether performing on the go or practicing at home. This electronic percussion engine delivers natural grooves across a wide range of rhythms, styles, and instrument combinations. Use it to enhance your live performance, add life to your practice sessions, or replace a standard metronome with something more musical and inspiring. The built-in speaker reproduces rhythms in high-quality 24-bit digital audio for clear, dynamic sound.
 
With its intuitive control panel, the DR-01S lets you choose beats and style variations, layer up to seven instruments, and create your own custom patterns. You can save your favorite setups in one of 50 memory slots for quick recall. Easily adjust tempo, time signature, and volume to fit your playing. Available instruments include shakers, tambourines, cajon, bells, full drum kits, and more—each featuring grooves created by real percussionists for a natural, authentic feel.
 
Connectivity options include an aux input for playing music from a smartphone or device, as well as outputs for routing sound to external amplifiers. A dedicated 1/4" TRS jack also allows control via optional footswitches. Power the unit with the included AC adapter or enjoy up to 10 hours of portable use with six AA batteries.