Abstract: A shield device for any phone with an antenna that emits and receives microwaves, in particular cellular phones. The shield device protects a user by blocking the passage of microwaves to and from the cellular phone antenna while the phone is in use. In the first embodiment of the invention, the shield device comprises a rectangular shaped body with an upper tab for attaching the shield device to the antenna and two opposing lower tabs for attaching the shield device to the upper portion of the cellular phone. The shield device consists of a cover with a pocket for receiving the shielding member. In a second embodiment of the invention, the shield device contemplates a semi-circular hollow tubular member adapted to fit over an antenna. The tubular member has an elastic bottom portion adapted to fit firmly over the antenna ferrule. The bottom portion of the tubular member consists of a resilient disk member, thus protecting the user from any microwaves emitted and received by the antenna.