Feature: 1. 20W portable amplifier design for electric drum, electric keyboard and other electric musical instrument. 2. Dual speakers design, 6.5 inch woofer for better bass effect, and 2 inch tweeter for better treble effect. 3. With 2-band EQ(LOW u0026 HIGH) and volume control knobs; supports USB MP3 player function. 4. Supports wireless BT connection, you can connect the amplifier with smartphone/tablet to play music. 5. Compact size and lightweight, the amplifier is a perfect choice for traveling musician. Wish you have a wonderful musical journey. Specification: Features: 20W portable amplifier design for electric drum, electric keyboard and other electric musical instrument. Dual speakers design, 6.5 inch woofer for better bass effect, and 2 inch tweeter for better treble effect. With 2-band EQ(LOW & HIGH) and volume control knobs; supports USB MP3 player function. Supports wireless BT connection, you can connect the amplifier with smartphone/tablet to play music. Compact size and lightweight, the amplifier is a perfect choice for traveling musician. Wish you have a wonderful musical journey. Specifications: Brand: COOLMUSIC Model: DM20 Color: Black Input Jack: 1/4 inch Item Size: 28.6 * 23.2 * 25cm/ 11.3 * 9.1 * 9.8in Package Size: 33 * 28.5 * 28.5cm/ 13 * 11.2 * 11.2in Package Weight: 6kg/ 13.2lbs Packing List: 1 * Amplifier Package List: 1 * Amplifier