ZTE Cute Wi-Fi Pocket Wi-Fi Mobile Router [Thin & Lightweight / Long Operating Time / Official Japanese Product / SIM-Free] I used this for about a month until I got Wi-Fi installed at home, but I haven't used it since then. The condition is extremely clean, with no scratches or stains, and it works perfectly! It's SIM-free, so it works with domestic carriers as well as overseas SIMs (as long as they support mobile data). [SIM Type: microSIM] (※Please note that this is not a nanoSIM model) Feel free to ask any questions in the comments.