The manufacturer is IDY, and this is a listing for a wireless router. It is a used item. It was working normally about a year ago when it was removed. The SIM card is specified for Docomo. As shown in the fourth photo, the micro-SIM card installation hardware is broken or damaged, and it is unknown if the SIM card can be installed correctly. Therefore, please consider it as junk. No returns accepted. The antenna is a third-party product, and as a bonus, I will include two LAN cables and a Torx wrench for opening the cover.