It is an ingenious wired numeric keypad, 18 keys, thin and compact. -and-play, simple and convenient. Keystroke life is up to 5 million times. Tilt design and foot pads, make it durable. Besides, its and portable design is another plus point, which makes it a perfect for business travel. Features: -and-play, simple and convenient. Apply to all computers with USB interface. Keystroke life up to 5 million times. Thin and compact design: 18- wired numeric keypad, and portable. Tilt design for accidental spill. foot pads greatly the keypad from slipping. Ergonomic design makes it fit for your finger and wrist, effectively reducing the fatigue caused by intensively long-hour working. Support automatical hibernation mode, no power button needed. The indicator is on when the device is ready for data entry. Specification: Material: ABS number: 18 keys life: 5 million Interface: USB Voltage: 5V Current: 0.25A Cable length: 1.35m Item size: 8.5 * 14 * 2cm / 3.35 * 5.51 * 0.79in (L * W * H) Item weight: 76g / 2.7oz Package size: 14.8 * 9.3 * 3.5cm / 5.83 * 3.66 * 1.38in (L * W * H) Package weight: 100g / 3.53oz Package List: 1 * Numeric keypad Note: Package list without user manual Plug-and-play, simple and convenient. Apply to all computers with USB interface. Keystroke life up to 5 million times. Thin and compact design: 18-key wired numeric keypad, mini and portable. Tilt design for accidental water spill. Non-slip foot pads greatly protect the keypad from slipping.