Feature: 1. Easy Operation: This wireless number pad helps simplify the task of entering large amounts of data, allows direct input of four digits. 2. Comfortable Typing: This wireless number pad features ergonomic design, which provides easy and comfortable typing experience. 3. Portable Size: This wireless number pad is small in size and light in weight, which can be carried easily. 4. Long Battery Life: This wireless number pad adopts AAA battery in large capacity, which ensures long battery life. 5. 2.4 GHz Wireless: This wireless number pad adopts 2.4 GHz wireless, which allows the keypad to function up to 10 meters / 10.9yd away from the receiver. Specification: Item Type: Wireless Number Pad Material: ABS Connection Technology: 2.4GHz Number of Keys: 19 Thousand Key: Supported Working Distance: 10 Meters Color: Black Button Life: More Than 10 Million Times Battery: 1 X AAA Battery (Battery Not Included). Package List: 1 x Wireless Number Pad1 x User Manual1 x USB Receiver Note: Battery Not Included