Specification:Type: WiFi BoxModel: MF925Display: 3 LED lightsOperating frequency: 4G/LTE-FDD:B1/B3/B5/B84G/LTE-TDD:B38/B39/B40/B413G/WCDMA:B1/B5/B82G/GSM:(None)WIFI: 2.4G 802.11b/g/nTransmission rate: 150MbpsRated input: 5V 1ABuilt-in Battery: 3.8V 2100mAhFully charged working hours: 6-7 hoursCharging method: USB chargingSupport memory card capacity: 32GPhone card type: SIM cardWIFI name: 4GMIFI_4767WIFI password: 1234567890Homepage: 192.168.0.1Username: adminPassword: adminNumber of connected users: 10Material: ABSWeight: Approx. 152gSize: Approx. 95 * 60 * 15mm / 3.7 * 2.4 * 0.6in1. The location where the SIM card should be inserted into the SIM card cannot be inserted into the location of the memory card.2. The frequency band of the SIM card does not match the frequency band of the machine. You need to replace the SIM card with the frequency band that matches the machine to use (for example, the SIM card is B2, B4, B7, B20) but the machine is (B1/B3), this time If there is no matching frequency band, it cannot be used, and it cannot be connected to wifi.Package list:1 * WIFI BOX1 * USB Charging Cable1 * English User ManualNote:1. This product needs to be inserted into the SIM card, and the card is NOT included!2. Please take care to remove the sticker on the battery contact sheet before use.3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.