Adopting the latest Bluetooth 5.0 technology, the HR32 Marlin BT SD can maintain a strong, anti-interference connection to transmit data. The HR32 Marlin BT SD is equipped with megapixel technology to read virtually all 1D or 2D barcodes in any condition. From long or truncated 1D codes to larger and more high-density 2D codes. This versatile wireless scanner fits right at home in tight workspaces and the outer corners of your stock floors. The detachable dongle seamlessly transforms the charging cradle into a communication cradle.