In some embodiments, an apparatus includes a protective cover configured to attach to a wireless device having an exterior surface. The surface includes a first portion and a second portion mutually exclusive from the first portion. The second portion of the surface is associated with at least a portion of an antenna of the wireless device that performs proximity sensing for the wireless device. The protective cover is configured to cover the first portion of the surface when the protective cover is attached to the wireless device. The protective cover is configured to not cover the second portion of the surface when the protective cover is attached to the wireless device. As a result, the proximity sensing and/or the power transmitted by the antenna are not affected by the protective cover when the protective cover is attached to the wireless device and when the wireless device is operational.