Visible scan window: A visible window panel with light transmittance enables fast and reliable scanning of codes displayed on phone screens. Broad compatibility: You can scan barcodes, QR codes, and mobile payment codes on your phone screen (Alipay, WeChat, and other payment codes). Supports commonly used 1D and 2D codes. Indicator lights: The power indicator stays on and the scan success indicator flashes green to confirm a successful scan. Smart buzzer: After a successful scan, a prompt sound plays. The tone is crisp and powerful for clear feedback. Use scenarios: Retail checkout and verification to speed up transactions. Inventory management and stock checks in stores or warehouses. Event entry or venue access where customers display codes on their phones for quick verification or payment.