Sagem has released a tiny Bluetooth headset that they claim could be the world's smallest.

The H4 Bluetooth headset is glossy black, measures just 35 x 18 x 12.5mm, and weighs 8g.

It is able to store two of your favourite numbers at the touch of the Favourite Phone Number button or directly with voice recognition.

The tiny device is able to power 5 hours of talktime and 100 hours of standby, and takes only 1.5 hours to charge.

Available online through Sagem, it costs 79 Euro or £53.