This Marshall mini-monitor is typically used for remote verification of CCTV camera installations through a direct connection with the installed camera. The rechargeable battery pack has been untested and because the battery is depleted, it does not power up the monitor. This was fully functional when last used (it's late 90's tech) but is being sold "as-is". It comes with a carry bag which has a screen protector and hood for easy viewing in a lighted environment. The item has been stored in a dust free, smoke free dry environment.