Description: Electric Drum Amplifier 20W Portable Bluetooth Speaker System with Dual Drivers & USB Interface QDM-20 Audio output effects: Cab Control Type: Knob Hardware interface: Bluetooth Is Batteries Included: No Type: Amplifier The SONICAKE QDM-20 drum amplifier features intuitive controls, including adjustable treble, bass, and volume, plus convenient multimedia shortcut buttons. It’s also equipped with a 3.5mm Aux In jack for external audio input. Compact and lightweight, the QDM-20 is designed for easy portability—perfect for practice sessions anywhere you go.1. INPUT– Instrument input jack2. AUX IN– 3.5mm multimedia audio input3. TREB / BASS– Treble and bass adjustment knobs4. VOL– Master volume control5. Multimedia Controls– Playback and navigation interface6. POWER– Power indicator and on/off switchSpecifications:Power: 20W RMSSpeakers: 2 x Full-Range DriversConnectivity: BT 5.0, 1/4" Instrument Input, 3.5mm AUX, USB PortPower Supply: AC Adapter (included)Dimensions: 34x29x28 cm | Weight: 4.7 KGPackage Includes:1 x Electric Drum Amplifier1 x AC Power Adapter1 x Quick Start Guide