The screen shows scanned EID number and the quantity of EIDs scanned. Several visual indicators and an audible beeper ensure confirmation of scan. Internal rechargeable batter pack provides cable-free operation. Internal memory to store EIDs or can transmit real-time. Apple iOS compatible (iPhone and iPad). The RS420 reader can read HDX (Half Duplex) and FDX (Full Duplex) EID tags. Pro Kit contains RS420 Reader, Data Cable, Fast Charger, Extra Battery and Hard Case.