Review This versatile product is a combination of a Bluetooth speaker phone and a powered speaker rig that can be hooked up to any A2DP-capable device, or one with a USB cable or 3.5mm audio cable.

Like most kit coming from Logitech these days, the PureFi Mobile is a very well built device. Though black and silver plastics abound, the PureFi is as solid as a rock and the speaker grilles are very stiff, which bodes well for standing up to the knocks, bangs and drops that comes with a portable existence. Of course, portability is very much the PureFi Mobile's gig – at 275 x 70 x 30mm and weighing only 250g, it's unlikely to prove an encumbrance to any other than the very lightest of travellers.

Logitech's PureFi Mobile: resilient to the rough lifestyle of a portable speaker

Controls have been kept to the minimum in the, largely successful, quest for operational simplicity. For the phone side of things, you get call start, end and mute keys while for general system control you get on/off and sound-source buttons – the latter cycling through Bluetooth, USB and 3.5mm audio-in, with appropriate icons lighting up in green when in use. For audio control there are volume keys and a Stereo XL button that fires up the stereo expander feature.

The PureFi's 3.5mm audio-in jack and mini USB port are around the back, and it has two not exactly stylish but nevertheless sturdy and effective fold-out feet.

The Mobile comes with a built-in lithium-ion battery, so the first order of business is to charge it up either with the supplied mains adaptor or with the supplied USB cable. Logitech reckons a full charge is good for 12 hours of amplified playback.