Usage Tips:Bluetooth 2D portable scanning device: Handheld Bluetooth wireless barcode scanner portable scanner express supermarket screen payment scanner warehouse inventory machine3-in-1 transmission connection method: The portable barcode scanner has a three-in-one connection design: compatible with Bluetooth connection,2.4G transmission, USB wired connection.Support multiple languages: Our barcode scanner supports multiple languages, you can freely choose English, German, Japanese, French, Italian, Spanish.Multi-system compatibility: Compatible with Windows, MacOS, lOS, Linux, Unix, Android and other common systems and various software, suitable for desktops and notebooks, no driver installation required, plug and playColour:As ShownMaterial:plastictype:M9D 1D 2D/M9L 1D LaserPackage Contents:1 x Wireless QR code scannerOnly 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.