Usage Tips:Compact size and portable roll-up electronic drum set, very convenient to carry and store.With 7 silicon drum pads including /Snare/Hi-Hat/Crash/Ride, making excellent sounds and simulating real beating effect.SNARE and HI-HAT positions can be exchanged by pressing SPECIAL button, according to the hahit of player.Built-in 5 drum set tones, 8 demo and 3 types of rhythms for easier practice.Supports USB port or 2 * AAA batteries power supply.(batteries are not included)With 3.5mm headphone output jack for connecting external earphone or speaker.With MP3 input for connecting MP3/smartphone/ tablet to playing accompanying music.perfect for drum set learning & practicing of kids or beginners, family entertainment and friends gathering.Specifications:Drum Set Tones: POP, Rock, Latin, Electro, PercussionDemo : Heavy Rock, Funk, Latin, Samba, -, Swing Hi-Hat, Upbeat RockPower Supply: USB Cable(included) or 2 * AAA Batteries(not included)Item Size: 43 x 28 x 2.7cm / 16.9 x 11 x 1.1inItem Weight: 455g / 16ozPower: DC 5VInput: 2.5WOutput: 2WColour:blackMaterial:Silica gelPackage Contents:1 * Hand Roll Drum2 * Drum Sticks1 * English User ManualOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.