Griffin is to launch an FM transmitter device for iPods and iPhones that enables content stored on them to be played over a car stereo system.

Griffin already sells iTrip FM transmitter devices for use with specific models of Apple iPod - the iTrip Universal is a new design that works with any music player or other gadget that accepts 3.5mm headphone jacks.

The £24.99 iTrip Universal has a built-in lithium-ion battery and charges completely over a USB connection in around 2 hours. It costs £24.99 and will be available in the UK from Currys from October.

Griffin is also launching another in-car audio gadget: the Griffin Windowseat is a £19 docking cradle for the iPhone, iPhone 3G and iPod touch that means drivers can secure their music player. The intention, according to Griffin's Jackie Ballinger, is to make it safer for drivers to be able to use their iPods in their cars.

Although devices such as satnavs come with onscreen warnings about the danger of adjusting settings and otherwise interacting with your touchscreen gadgetry while driving, portable music players do not.

However, iPods and other music players are increasingly being used in cars and, given their touchscreen navigation design, it's all too tempting to use a finger to flick through and find another track or album - putting yourself in danger as you inevitably lose track of what's happening on the road.

If the music player you're listening to is being flung across the passenger seat as you take a tricky corner, reason Griffin, the danger of using it and accessing its library while driving is heightened still further. The Griffin Windowseat aims to ensure a degree of safety by fixing the music player in place.

Available from Halfords from October, the Griffin Windowseat comes with three different cradles for each of the iPod and iPhones it fits. It also comes with additional cradle arms so you can lengthen or shorten the distance from the windscreen depending on the size and design of your vehicle.

Griffin iTrip Universal FM transmitter is a new spin on the iTrip Auto