NOT NEW, as advertised, both seals were broken on box, and loose ssn labes. missing markings of original manufacture like the one I already have. Confirmed it is a Chinnese bootleg, with cheap instruction paper, not even the manual. Barely functions and does not have the SD card slot to work as a holter monitor. The seller lied and is not worth contacting for their Asian excuses. Overpriced as new when it is not that either. It's only good enough for spot checking. I work as a CCRN. 31 yrs,