This is an excellent headset with a good quality sound, just as you'd expect from Sennheiser. It's comfortable to wear for extended periods, and at only 12g you'll easily forget you've got it on. It's very easy to use with just three buttons - one multifunction and two volume (+ and -). The quick guide instructions that come with the unit are pretty basic, but it's very easy to download a full instruction booklet from the Sennheiser website, which give extensive instructions on every function of the unit. Charging takes just 2 hours, and the unit has all the normal functions - accept/reject calls, redial and muting. It will remain on standby for up to 300 hours, with a talk time of about 7.5 hours. It can be worn left or right handed.
Arrived from Amazon EU S.a.r.L within days of ordering suitably wrapped in manufacturer's packet with cardboard wrapper). Top service as usual.