Leading internet service provider (ISP) 3 is continuing to promote its latest low-cost dongle offer.

In a new advert in the Metro newspaper, the ISP informed customers that its current ZTE mobile broadband modem is available for just £7.50 per month.

The dongle, which comes free of charge when subscribing to the broadband deal, can be plugged into any laptop or PC to provide versatile access to the internet.

Customers taking advantage of 3's deal are entitled to a 1GB monthly usage allowance – sufficient for web browsing, email and social network use.

If customers exceed this allowance, they are charged at a rate of 10p for each additional MB consumed.

The offer is applicable to consumers signing up for a 24-month dongle deal, and subject to availability and a successful credit check.

Earlier this week, 3 made the Acer D260 and Samsung N230 available for customers signing up to its broadband and laptop deals.