Model No: E-W59 2.4 ghz wireless mouse USB 2.0, plug and play Tiny receiver adopted in the mouse, convenient to take. Countered design, for both hands. Precise tracking: advanced 1600 DPI. Optimized connection: 2.4G wireless Standard 104 Key slim keyboard PS2/USB Interface Plug & Play No driver required Contact Resistence: 500 ohm maximum