The Acoustasonic 15 amplifier offers portable amplification for acoustic-electric guitar and microphone. It's simple and flexible enough for a variety of musical performance or basic public address. Specifications : Inputs: Two (1/4 Instrument and XLR Microphone) Headphone Jack: 1/4 Headphone jack Channels: Two (XLR Microphone and 1/4 Instrument) with Individual Volume Controls Controls: 1/4 Channel: Volume, Bass, Middle, Treble, Chorus. Microphone Channel: Volume, Bass, Middle, Treble. Hardware Finish: Chrome Amplifier Depth: 7.13 Amplifier Width: 11.19 Amplifier Height: 11.5 (29.2 cm) Amplifier Weight: 10.5 lbs. Effects: Chorus Effect (for instrument channel) with Level Control and On/Off Switch Speaker Description: 6 inch Special Design full-range speaker with whizzer cone for enhanced high-frequency response. Speaker: 6 Inch Special Design Full-Range Speaker Unique Features: Features Include: 15 Watts of output power, 6 inch Special Design full-range speaker with whizzer cone for enhanced high-frequency response, two channels (XLR microphone and ¼ instrument) with individual volume controls, Chorus effect (for instrument channel) with level control and on/off switch, Bass, Middle, and Treble tone controls, ¼ headphone output, Classic Fender cosmetic treatment with brown textured vinyl covering and chrome hardware for durability and great looks, one-year transferable warranty (US and Canada, other territories may vary). Knobs: Black