30-Watt Drum Amplifier that with TWO Speakers(LF:8-inch woofer, HF:2.0inch tweeter, Impedance: 4 ohms ) provides rich tone with intuitive controls. 【Multipurpose amplifier】Use for Electric Drum practice, keybord practice, band performance, outdoors playing.Frequency response ranges from 20 to 20KHZ.Musical instrument input which can be connected to 'electronic drum', etc. 【Two channel】High-Efficiency and Super Durability.Extremely versatile 2-channel amplifier.two inputs with separate gain control for each channel.3 band EQ low ,Middle, High.AUX in with gain control knob 【Headphone and DI OUT】 1/8" Headphone Output Jack for Silent Practice.DI output port for external active speakers. 【Bluetooth and Portable】You can use your phone or I pad to play background music for your workout. Small size and light weight. It can running to a family practice, lesson or any situation.