When you need a portable printing solution that meets all of your workplace demands you can rely on the rugged rj 4040 with ip54 drop test rating for fast printing on the move ultra efficient thermal technology means youre always ready to print 4 labels receipts quotes and invoices totally dust and waterproof the rechargeable rj 4040 is available with a range of add on accessories that make sure youll get the most from this durable machine and serial wi fi and usb connectivit