This is a Samsung Galaxy A21 SCV49, SIM-free, sold by au, that was used as a dedicated device for "video viewing, searching, and phone calls"! As you can see, the exterior has some minor scratches on the frame, but the 5.8-inch LCD screen is in relatively good condition, and it's a near-mint product that highlights the GALAXY's characteristic "compact and simple design"! ʕ•̀ω•́ʔ✧ As far as functionality is concerned, as far as I've checked, the LCD touch, SIM communication calls, various buttons, screen display, good sound quality and volume, Wi-Fi, tethering, etc., are all working fine, and the battery is also very good... it lasts from morning to evening with normal use! (^O^)v The best part is that it's compatible with most carriers, including "docomo," "au," and "SoftBank," as well as "mineo" with unlimited low-speed data for 900 yen, "povo" with a free basic plan and topping options, "LINEMO" with 900 yen cashback for 6 months, and "Rakuten Mobile" with unlimited calls and data for 2980 yen (excluding tax)! (*•̀.̫•́✧ However, this model doesn't catch these signals just by inserting a SIM card, so for those who are not confident in setting it up, I can set up your preferred carrier's APN after "initialization," update the Google Play Store, and then you can enter your Google account, etc., and it will be ready to use! (^^)d It's a SIM-free device with no remaining balance, equipped with the latest OS "android 11" with "RAM 3GB/ROM 64GB," and this au-certified model can still be used on the front lines! (^-^) 【Request to Customers!】 We will accept "cancellation requests" due to unavoidable reasons from the customer's perspective, but the return shipping costs (about 180 yen for Click Post or Smart Letter) will be borne by the customer... Also, customers using convenience store payments are requested to inform us of the "exact payment date and time"... m(_ _)m