This wireless numeric keypad helps simplify the input work of large amounts of data to make the data input more relaxed. Thousands key allows you to input a four-digit number at once. Furthermore, suspension keys give a super comfortable and power-saving typing experience. Features: 19-key Wireless Numeric Keypad - Helps you input numbers more conveniently and more directly. Thousands Key - The built-in thousands key makes it possible to input a four-digit number directly. Comfortable Touch Feeling - Suspension keys give you a comfortable touch feeling. For Touch-typing - A great numeric keypad for touch-typing. Long Work Time - A large capacity AAA battery enabels it to work for a super long time. Waterproof - The crater design effectively prevents water entering. Portable - Mini size and light weight allow it to be carried to everywhere. Specifications: Product type: Wireless Numeric Keypad Connection: 2.4GHz USB receiver Keys number: 19 keys Thousand key: Support Waterproof: Support Wireless connection distance: 10m Key life: 10 million clicks Battery: 1 * AAA battery( not included) Suitable: For touch-typing Package size: approx. 14.7 * 11.6 * 3.8 cm/ 5.8 * 4.6 * 1.5 in Package weight: 134g/ 4.7oz Package List: 1 * Wireless Numeric Keypad 1 * User Manual 1 * Receiver .