Goes in and out even if phone is right next to you. When it is working its very clear and sounds great, however it wont keep connected to the phone. You can have phone right next to you and it will jump from phone to bluetooth constantly. Maybe I just have a bad one ..so dont base your decision on one review. I have had several ones from this brand and they have been GREAT! When this one does work its sounds great so maybe just a defect.