High-speed wireless connectivity: Supports mobile app connection for centralized management of data files. Stores over 2000 files offline with full data synchronization and updates. Automatic operation and independent use: Functions without a mobile phone and supports offline use. Clear screen display for easy monitoring. One-click start to automatically generate data for efficient, continuous card swiping. High-quality chip: Intelligent sensing technology ensures fast and responsive touch-based swiping. Long-lasting battery life: Designed with low-power and energy-saving technology. Uses a button battery that lasts up to 180 days under normal usage conditions. Factory batches may vary. Minor differences in labeling or wording do not affect product functionality. Color: White. Material: Plastic. Package Contents: 1 x Handheld Emulator. Note: Other items not included. Light reflection and differences in display screens may cause slight variations in color compared to the actual product. Measurement error allowance: +/- 1–3 cm.