The JOYO BSK-60 Acoustic Guitar Amp provides a huge 60W of Power, a Rechargeable Lithium Battery - Reverb, Delay, Chorus Guitar FX - In-Built Looper for Guitar - Anti-Feedback - Footswitch Control - Dedicated Mic Channel - 9V 500mA Output for FX Pedals. BSK-60 amp is specially designed for acoustic guitar, with 60W(RMS) power. Its EQ curve is tailor made for acoustic guitar, with built-in anti-feedback function and guitar signal phase inverter function, offering a nice and bright treble with rich mid-low frequencies. A high-performance DSP chip With a built-in high-performance DSP chip, featuring several DSP digital effects (CHORUS, DELAY, REVERB, ANTI-FEEDBACK). Those DSP digital effects can be used at the same time, which sets it apart from rivals' similar products. A Long battery life With built-in lithium battery, normally, can be used for 8hrs continuously once fully charged, and ensure the whole performance unplugged. A performers amp The BSK 60 is ready for performance with diameter:35mm speaker support holes. Put the support bracket in BSK-60’s support hole, so you can prop up the amp with ease. (support bracket is not included in the packing list) The cabinet timber has a thickness of 15mm. Brings you the original wooden sound of your guitar with multifunctional footswitch pedal. The footswitch pedal features quick mute, anti-feedback, record functions and more.