I was looking for a Nokia Compatible and Cheap bluetooth headset and I found this great product.It works perfect with my Nokia 6131 once you configure your phone with it (1 minute or so) you are ready to use itThe AAA battery gives you the oportunity to buy one if you need it when you are traveling and not to depend on a special charger, that in some ocassions its to bulky and an other accesory to carry.Just a little problem, you have to memorize the function of the main botton, one second, two beeps etc.