Brother MW-260G1. Maximum resolution: 300 x 300 DPI. Print technology: Direct thermal, Print speed: 3 ppm. Width: 130 mm, Depth: 210 mm, Height: 18.5 mm. Battery technology: Lithium-Ion (Li-Ion), Battery capacity: 1100 mAh. Compatible operating systems: Microsoft Windows 2000/XP/Vista, Microsoft Pocket PC 2003/Pocket PC 2003SE, Windows Mobile 5.0