There are a number of places one can look to find reviews for mobile phones in the UK. There are a number of print magazines dedicated to mobile phone reviews such as Mobile Choice magazines. There are many online sites that review mobile phones such as TechRadar, CNet, Which and ExpertReviews. User reviews of many mobile phones can be found on Amazonl.
You can purchase headset-only mobile phones online. One place you can purchase headset-only mobile phones is on Amazon. You can purchase multiple headset-only mobile phones on Amazon. Amazon has many headset-only mobile phones on their website form many different manufactures and models of headset-only mobile phones that you can choose form to purchase online on their website or from their website.
By the end of 2008 there were an estimated 4.1bn mobile subscriptions, up from 1bn in 2002. That represents six in 10 of the world's population, although it is hard to make a precise calculation about how many people actually use mobile phones. http://www.guardian.co.uk/technology/2009/mar/03/mobile-phones1