This; the ultimate portable amplifier. It's battery powered and rechargeable (just plug into; wall socket; recharge!). It's clean sounding, loud for its size, and has that cool Pignose look; favorite; street musicians around the globe, the Hog 20; can; slung over; shoulder, strapped; bicycle, propped; by; tree, set; the beach sand...use your imagination. Finally, amplified music ANYWHERE!; The Hog 20's; front panel features include volume, tone and "squeal" overdrive/distortion controls, and; standard 1/4" input jack. The rear panel has; 1/4" headphone out jack which allows the user; plug; headphones (switching off the speaker). This jack can also; used; an output for directing low-level signal; another amplifier; direct; recording console. Two inputs (one; the front and one; back) are included. Uses rechargeable lead-acid batteries (included with charger); watts RMS; tone control; 6.5" speaker; SPECIFICATIONS: Power output: 20 watts Speaker: 6.5" Batteries: Internal rechargeable lead-acid batteries AC Operation: Yes, with included recharger/adapter cable Headphone Jack: Yes; rear panel Inputs: 2; front; rear Cover: Brown pigskin tolex Battery Life: 6; 10 hours between charging (during use) Shelf Life: 3; month shelf life between charges Suggested Uses: Guitar, Keyboard, Bass, Vocals, Music Playback Dimensions: 10"; 11-1/2" Weight: 15 lbs.