Telstra's Elite Mobile Wi-Fi modem — described by the telco as "Australia's fastest battery-powered 3G mobile Wi-Fi device" — is a battery operated modem that allows up to five Wi-Fi enabled devices to connect to it wirelessly for shared mobile Internet access. The Telstra Elite Mobile Wi-Fi modem is theoretically capable of 21Mbps download speeds and also has a handy OLED screen, but battery life could be improved.The Telstra Elite Mobile Wi-Fi modem is a similar device to Telstra's Pre-Paid Mobile Wi-Fi modem, but is theoretically capable of 21 megabits per second (Mbps) download speeds rather than 7.2Mbps. It also has a handy OLED screen that shows information including signal strength, the number of devices connected and battery level — though you have to press either the power or WPS buttons on the right side of the modem for it to display once the screen turns off to save battery life. The OLED screen isn't a deal breaker, but it is more convenient than the LED lights on Telstra's slower Pre-Paid Mobile Wi-Fi modem.The Telstra Elite Mobile Wi-Fi modem is constructed from glossy white plastic and is very light. The rear battery cover feels cheap and creaks when pressed, and the power and WPS button, along with the microSD card slot cover feel a little flimsy. When connected, multiple devices can access the content of a microSD card in the Elite Mobile Wi-Fi modem.The Telstra Elite Mobile Wi-Fi modem charges via a standard microUSB port through an included AC adapter or USB cable, and the device can still be used while it is charging. The modem gets quite hot during both charging and regular use, but conveniently turns itself off after 10 minutes of inactivity.The Telstra Elite Mobile Wi-Fi modem is very simple to set up: you simply insert your SIM card and the battery, turn the unit on and it is ready for use. The unit comes with a default SSID and WPA key, which is printed on a card in the box. You can change the network name and the password by accessing the device's Web interface; settings are minimal and the layout of the page is basic and rather ugly, but it does the job and is something you won't need to access too often.As is always the case when it comes to mobile broadband, the speed of the Telstra Elite Mobile Wi-Fi modem will depend on a number of factors, including the mobile network, the area you're in, the time of day and network congestion. Telstra's Next G generally offers better network speeds and coverage than its competitors. The Telstra Elite Mobile Wi-Fi modem is capable of theoretical maximum download speeds of 21Mbps and upload speeds of 5.76Mbps.