This numberic keyboard is made of sturdy top-grade ABS material with perfect water & effect. With built-in receiver storage, plug and play, signal transmission stability, up to 10 meters working range, easy to carry. Convenient and easy to use, support plug and play, and is applicable to any desktop and laptop computers. Feature - Color: Black - Material: ABS - Size: 140*85*30 mm - and waterproof numberic keyboard - USB interface plug and play - Built-in receiver storage, plug and play, signal transmission stability, up to 10 meters working range, easy to carry - Fast mechanical keys with medium resistance, precise actuation, audible click sound, and tactile bump feedback. - The stepped keycap,fit your hands easily to prevent fatigue. Spring type ergonomic design, care for your wrist. Works with PC and desktop computers that have 2000 / XP / Vista / 7 / 8 / 10 operating systems Package list: 1 x numeric keypad