The sound quality of the Scala 500 is too poor for use in a business environment. Customers could not hear me on several occasions and the headset volume was too low for use in noisy environments like a car. In general, the sync process of bluetooth is quite a burden. It takes about 20 seconds -- this means that you can't sync it when needed, but must leave it on at all times if you wish to use it on incomming calls. Until I can find a bluetooth headset of comparable quality I have gone back to a $11 hardwired headset that I purchased at my local convience store.