Compact and Portable: This 22-key wireless numeric keyboard features a mini, lightweight design, making it easy to carry and ideal for travel and office use. Ergonomic Design: Designed for comfort, the keyboard boasts an ergonomic layout that helps reduce strain during long hours of data entry. Plug and Play: Comes with a USB receiver for a simple plug-and-play setup, compatible with most laptops and PCs without needing extra drivers. Enhanced Productivity: Perfect for finance professionals, accountants, and students, this numpad enhances productivity by facilitating quick and accurate numeric data entry. Power supply mode: 2 * AAA batteries(Not included in the shipment) Due to different batches, there may be differences in product appearance and printed text, which will not affect use Colour:Black Material:ABS Package Contents: 1 x Numeric Keyboard Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.