Easy to Use: This wireless number pad helps simplify the task of entering large amounts of data, allowing for direct input of four digits. Comfortable Typing: This wireless number pad features an ergonomic design, providing a simple and comfortable typing experience. Portable Size: This wireless number pad is small in size and light in weight, making it easy to carry around. Long Battery Life: This wireless number pad uses a large-capacity AAA battery, ensuring a long battery life. 2.4 GHz Wireless: This wireless number pad utilizes 2.4 GHz wireless, allowing the keyboard to operate up to 10 meters / 10.9yd from the receiver. Item Type: Wireless Number Pad Material: ABS Connectivity Technology: 2.4GHz Number of Keys: 19 Thousand Key: Supported Working Distance: 10 meters Color: Black Key Lifespan: More than 10 million times Battery: 1 X AAA Battery (battery not included) 1 x Wireless Number Pad 1 x User Manual 1 x USB Receiver If you find any product problems after receiving the item, such as damage or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory customer service.