SONY SVE111B11N model, a Japanese keyboard laptop with a Li-ion battery. This is a junk item with a defect; it's missing the adapter and has not been tested for startup. It's a used item with a defect. - Brand: SONY - Model: SVE111B11N - Voltage: 19.5V - Battery type: Li-ion - Keyboard: Japanese layout Windows 8 Thank you for viewing.