I'm selling this because I bought it 7 years ago but haven't used it, so it's been sitting around. I mainly used it for practicing with headphones by connecting a player, rather than playing sound through the speaker. I've never taken it outside. Operation has been confirmed with the adapter, but battery operation has not been checked. Accessories include the adapter, instruction manual, warranty, etc. The outer box is not included, so it will be packed with air-cushioning material and cardboard. - Brand: Roland - Model Name: Micro Cube Bass RX - Features: Effects, Rhythm Guide, Equalizer - Input Terminals: DC IN, AUX IN, Stereo, Mono - Volume Adjustment: Gain, Volume, Effect Volume