NEC mobile router Speed WiFi 5G X12 [NAR03], SIM-free. While there are concerns about data being extracted from Chinese-made devices, this one is from a reliable Japanese manufacturer. Used only a few times for short periods, it's in a clean condition. However, I found a small scratch on the surface, so I'm offering it at a reduced price. Operation confirmed. Many used ones have scratches on the corners, but I think this one is in excellent condition. I checked the battery life, and it hasn't changed from when it was new. I think it lasts plenty long. This condition is valuable, especially since many are used while connected to a cradle, which degrades the battery. It can be used with Rakuten Mobile, allowing you to have unlimited Wi-Fi at a low cost. I use the same model with a Rakuten Mobile prepaid SIM and get 100GB per month for about 2300 yen. You can enjoy 5G even at a low price, which is comfortable. The 5G area has expanded considerably in the past year, which is very good. I'm happy to share more information if you'd like. Also, I will provide careful support if you are unsure about APN settings. There is also a manual. I will include it if you wish. It will be shipped via Nekopos, so the box will not be included, but it can be shipped folded. A new dedicated case is included. The inside is microfiber, so it stays clean just by being in the case. Price is not negotiable. The main features of the Speed Wi-Fi 5G X12 [NAR03] are as follows: High-speed communication: Supports 5G and Wi-Fi 6, enabling fast and stable wireless communication. Achieves a maximum download speed of 3.9Gbps. The first WiMAX mobile router to support SA 5G. Security: Supports the latest Wi-Fi security standard WPA3, enabling stronger security measures. Convenience: Lightweight and compact design for easy portability. Equipped with a 4000mAh battery for long continuous communication. Supports Wi-Fi connection settings via QR code. By using a separately sold dedicated cradle, wired connection and more stable 5G communication are possible. Other: You can easily manage the device and check data usage with the dedicated smartphone app.