Portable and professional drum. High quality drum sound inside, brings you nature and powerful sound effect. Professional demo inside, convenient to study.Standard drum setting and expansive pedal make you feel absolutely the same as real drum. Accompaniment inside, temp adjustable (40-208), gives you the best way to study and practice. With record function, you can record your inspiration anywhere anytime. Audio input and output, excellent expandability for other devices. Powered by 2 * AAA batteries or DC 5V port. This electronic drum is without speaker. You need to connect it to amplifier or headphone to enjoy the sound.