This router is set up for Rakuten Mobile and can be used immediately by inserting a Rakuten SIM ( ˙꒳​˙ ). Regarding its operation, it's reliable as I've been using it (っ´ω`c). If you want to use it with Docomo instead of Rakuten, please reset it yourself m(_ _)m Long press the reset button ‪ꔛ‬ Thank you in advance(*´ч ` *) I'll send the setup password etc. in a message(*´▽｀*) Feel free to comment for a little price negotiation m(_ _)m 5G compatible wireless LAN router, HR01 model, with power adapter. - Model Name: home 5G HR01 - Included items: Power adapter, Instruction manual - Country of manufacture: China - Frequency band: 2.4GHz/5GHz - Reset button: Yes - Color: Black Thank you for viewing.