An accessory for an electronic device includes: an AR headset; at least one phased array antenna on the AR headset, the at least one phased array antenna comprising an array of antenna elements that are configured to form a beam in a determined direction, the at least one phased array antenna being configured to communicate wirelessly with an external device; a local communication system in the AR headset, the local communication system configured to communicate locally with the electronic device; and a battery in the AR headset, the battery operatively connected to each of the at least one phased array antenna and the local communication system.