"Donner DKA-20 20W Keyboard Amplifier features a 8'' Special Design Low Frequency speaker and 2'' Special Design High Frequency speaker.Jam along with your favorite tracks by simply plugging your MP3 player into the Auxiliary input and you instantly become part of the band. Unique Design Donner DKA-20 AMP comes with a Custom Perforated Grill Mesh Sheet.Rich and practical audio interface.Rugged housing makes it durable. Angled back design provides a comfortable listening experience. Supporting microphone Input The maximum gain is 48dB, supporting microphone input, and the tone is clean and warm. Frequency response ranges from 50 to 20KHZ. Soft and stable sound, less tone dyeing, strong reduction.Convenient for playing and singing performances. Practical audio interface Two 1/4"" Instrument Input, 3-Band EQ, 1/8"" Auxiliary Input Jack for Jam-Along with Media Player or CD, 1/8"" Headphone Output Jack for Silent Practice. DI output port for external active speakers Package included The edge of DKA-20 is surrounded by hard material, protecting the amplifier from damage and pad of rubber makes it stand safe and stable. The Volume controls how loud your amplifier is. The Treble/ Middle /Bass controls help you shape the high and low frequencies of your Keyboard tone. Donner DKA20 amp provides explosive tone with intuitive controls at a great value"