b-mobile 4G WiFi3 Mobile WiFi Router Black BM-AR5210HP Slightly creased outer box. It's old, but works properly. Operation confirmed. Please prepare your own Micro SIM. External dimensions: 89mm x 79mm x 17mm Weight: 90g Wireless standards: IEEE802.1b/g/n compliant Communication method/frequency: LTE: 800/1500/2100MHz HSPA / WCDMA: 800/2100MHz Maximum communication speed: LTE: 100Mbps (down) / 50mbps (up) (theoretical value) HSPA: 7.2Mbps (down) 5.76mbps (up) (theoretical value) Continuous usage time: Approximately 8 hours (3G) / 7 hours (LTE) Varies depending on the environment Battery: Lithium-ion 2100mAh (3.8V) SIM card size: Micro SIM *Please note that the continuous usage time may be shorter than stated due to the age of the battery. Please understand that this item has been stored at home before purchasing.