Everything's getting smaller nowadays and Bluetooth headsets are no exception.

The new Invisio G5 from Swedish headset maker Nextlink is a very small and discreet wireless headset weighing less than 6 grams and measuring 3.3 cm long and 1.6 cm wide. The manufacturers claim, when fully-charged, the headset should give up to 20 hours of talk time and 30 days of standby time.

The three button interface controls the headset. The headset provides up to 4 hours talk time and 150 hours of standby time. The revolutionary protective case not only protects the headset when stowed in a pocket or bag, but also charges the headset while on-the-go.

The headset is worn using the patented Soft Spring, which adapts to the contours of the ear, also allowing people in glasses to use the headset without it getting caught up. It can be adjusted to suit either ear.

"Technical innovations and smart designs have little value if the headset doesn't feel comfortable for continuous use. Our patented unique Soft Spring adapts perfectly to the contours of the ear, allowing easy use of eye wear and offering maximum comfort as well as a secure fit," said Nextlink chief executive Lars Højgård Hansen.