I got this product from Amazon for $39. It works really nice. Connects immidiately with my Sony Ericsson W810i. It had some difficulty connecting to my Sony Vaio laptop. I guess its not the headset, but, cheap bluetooth dongle adaptor creating problems. Gives a sufficient long time before next re-charging. Inbuilt betteries re-charge in time specified in manual.Its little uncomfortable to ware for a long time. but anyways, how long are you going to keep talking on phone?Size could have been reduced and some times i get complains from other end of low volume level.Overall, this product performs as described by manufacturer. And i would give it 4/5.Thank you...