I purchased this six months ago and haven't used it much, so it's in good condition. Intuitive design that allows you to create with your senses faster than thinking. It's standalone and easy to carry around. The Move has a built-in processor, speakers, and microphone, making it the perfect partner for music production on the go. The battery can last up to 4 hours on a single charge. A black expansion pad sampler with 16 pads and 8 knobs. - Model: Expansion Pad Sampler - Color: Black - Number of Buttons: 16 pads - Number of Knobs: 8 knobs - Display: LED display Thank you for looking.