Orange Amps Crush Mini (Black)The portable Crush Mini from Orange Amps brings great sound quality and versatility for everyday practice. It is small enough to fit in the backpack and can be powered by a 9V battery or AC adapter. You can connect a pair of headphones for silent practicing or plug in an external speaker. At the back of Crush Mini is a 1/8" Aux Input for laptop or MP3 player connection. You play along with your computer's music. The Crush Mini Amp provides 3 Controls (Volume, Shape, Gain) and a built-in chromatic tuner.TECHNICAL SPECS:Speaker: 4" Voice of the World SpeakerOutput Power: 3W TotalFeatures: EQ, Chromatic TunerPower Source: Internal 9V Battery / 9V Power SupplyConnectors: 1/4" Instrument In, 1/8" Aux In, 1/8" Headphones, 1/4" (8 Ohm) Speaker OutputSize (DxWxH): 3.3 x 5.9 x 5.7"Weight: 2 lbAlso Comes With:SR350 Closed-Back Stereo HeadphonesListen to high-quality stereo sounds with the SR350 Headphone! It features 35mm drivers that produce an outstanding bass performance. The 32 Ohm Headphone delivers excellent noise isolation and boasts 110dB sensitivity. It's ideal for listening techno and pop genres with its wide 20Hz~20kHz frequency range.Blucoil 9V 670mA Power SupplyThe 9V Power Supply ensures the correct amount of power gets transmitted to your electronic devices. It offers protection against short circuits, over-temperature, over-current, and over-voltage. The power supply features an extra-long 3m cable and a universal input voltage range of 100-240V ~ 50/60Hz. It works with Orange Amps Crush mini as well as various effects pedals and tip-negative electronic musical instruments that need the same amp requirements and voltage.