Specification:
Model: H5577
Color: White
Support 4G frequency band: B1/B3/B5/B40
Frequency band:
DD-LTE: Cat4 130 Mbps DL/35Mbps
FDD-LTE: Cat4 150 Mbps DL /50Mbps
WiFi standard: 802.11b/g/n1"1
WCDMA: WCDMA: Downlink 21Mbp/UL 5.76Mbps
3GPP/3GPP2 protocol: LTE FDD/TDD version 9
Maximum number of WIFI users: 8-10
RF chip: RTR1605
Wireless MIMO technology
TDD-LTE: 21dbm ± 2dbm
Wireless transmission power:
FDD-LTE: 21dbm ± 2d
WCDMA: 2ldbm ± 2db
Support: 2.4GHz
Interface: USB
Compatibility: WEB Cross-browser compatibility
Battery: 2100mAh lithium battery
Working temperature: -10 ° C to 60 ° C
Working humidity: 5% -65%
Storage temperature: -30 ° C to 80 ° C
Storage humidity: 5% to 95%
Product size: 98 * 53 * 8mm/3.86 * 2.09 * 0.31in

How to use a router:
1. Push the rear cover down.
2. Insert the SIM card with the card core facing downwards
3. Insert the USB port into the power supply to obtain WiFi
4. Connect to WiFi and you can go online.
5. Connect to WIFI and open 192.168.100.1 in the browser to enter the background. The background can modify the WIFI name and password to add an APN.

Before purchasing, please read:
1. Before purchasing, you can check the frequency band in the link below to confirm if it meets local usage requirements
https://www.frequencycheck.com/countries
2. The frequency band used by the local country can be found in the following link
https://www.gsmarena.com/network-bands.php3?sCountry=IRAN
3. Frequency band query link used by local country operators
http://en.wikipedia.org/wiki/List_of_LTE_networks