3 has announced that its "mobile Wi-Fi" is now available on two new 18-month plans.

Those signing up to the mobile Wi-Fi 1GB plan will see a cost £10 a month for those happy to pay £39.99 for the modem, or £12 a month for those that aren't.

The 5GB mobile Wi-Fi plan will cost £15 per month which will see the modem priced at £39.99 or will cost £17 a month to get a free modem.

Mobile Wi-Fi, also known as "MiFi", uses 3's network to create its own mobile Wi-Fi hotspot.  This lets users connect a range of Wi-Fi enabled devices to the Internet at the same time.