Features: High Sensitivity feedbacks : Provides quick response keystrokes for enhances typing efficiency and accuracy, for data entry tasks. Plugs and Play USB Connection : Simple cord USB setups with not additional driver required, for various operating systems. Ergonomic Design : Engineered for comfortable to reduce fatigue during prolonged use, ideal for offices and financial work. Waterproof & Easy Clean Surfaces : Features spill resistant construction for durability in diverses environments. 19Key Numeric Layout : Compact yet functional design tailored for accountants, programmers, and professional requiring frequent numeric input. Specifications: Materials: ABS, Metal, PCB Product size: 135x93x40mm Product weight: 200g Color: Black Interfaces type: USB interfaces Number of keys: 19Keys Package Includes: 1PC USB 19Key Numeric Keyboard note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.