Sennheiser PC 121

The Sennheiser PC 121 is a stylish Internet telephony headset that features an adjustable microphone, volume control and a compact design that can be worn on either ear, making it ideal for travellers.

A great accessory for any VoIP or instant messaging client including Skype, MSN and iChat, the PC 121, doesn't require any drivers to operate. It connects to your PC or Mac via a standard 3.5mm headphone and microphone jack. The only downside is that it becomes your computer's main audio source - as if it were a set of speakers.

The PC 121 is a basic product, but its refreshing design means it's comfortable to wear. Although the ear clip can't be removed, it can be flipped around so the headset can be worn on your left or right ear. The plastic hinge glides smoothly and along with the adjustable, tilting microphone, the PC 121 really gives the aura of a well designed and built product.

The microphone itself is loud and clear and a handy in-line volume control and on/off switch sweetens the deal. These controls can conveniently be clipped to your shirt and the three metre cable means you can sit well away from your PC or notebook and still be able to use the PC 121.

Sound quality is above average; calls using Skype were generally crisp and clear, while the microphone handled outgoing sound well. Keep in mind that the quality of any VoIP call depends on a number of factors out of your control, including the quality of your Internet connection.

Also included is a 2.5mm stereo jack, the same connection used on some mobile phones, meaning the PC 121 can be used for hands-free calling too. Although this is a nice thought, you'll soon become frustrated with the extra long cable tangling, so we recommend sticking to Bluetooth or dedicated mobile phone headsets for hands-free mobile phone calls.