I received this Phonemate (made and/or distributed by TT Systems) as a gift. After using it for about ten weeks I can report that any of the other negative comments about this product are understatements. Even when new the sound quality on the receiving end was lacking in range and volume. After about 6 weeks the phone developed static that started off low and rose to a crescendo that sounded like a lighting storm in the ear piece, occasionally punctuated with screeching noises. Changing the channel does not alleviate this problem, nor does coming closer to the base. A slap to the headset though, does quiet it down for a brief respite. All in all a thoroughly unsatisfactory piece that has been replaced with a Panasonic 900 mHz KX-TC 1486 which is a true delight.