Durable Barcode Scanning Sled & QR Code Reader. The DuraSled DS840 is a universal barcode scanning and sled for 1D/2D barcodes, with Bluetooth wireless technology for Apple iPhones and iPods. The DuraSled reads printed or on-screen barcodes and protects devices from tumbles. It is easy-to-use and ideal for delivery services, stock counting, ticketing and other application-driven mobile solutions. Simply insert your iPhone/iPod, pair your scanner and you are ready to go.