Wearable adapters and clips of the kind that are attachable to a belt worn by a person, attachable to an article of clothing worn by a person, attachable to a purse strap, backpack strap, laptop case strap, duffle bag strap, suitcase strap and other similar carriables with one or more straps carried by a person, or directly attachable to a person and have formations to hold a mobile device in the form of a mobile phone, a mobile display or a mobile media player to allow a person to wear the mobile device; wearable adapters and clips that expand or enhance the processing power of a mobile device; wearable adapters and clips that expand or enhance the functionality of a mobile device; wearable adapters and clips that expand or enhance the storage of a mobile device; wearable adapters and clips that include a speaker for a mobile device; wearable adapters and clips that include a microphone for a mobile device; wearable adapters and clips that serve as a battery backup for a mobile device; wearable adapters and clips that serve as a battery expansion for a mobile device; wearable adapters and clips that serve as a battery charger for a mobile device; wearable adapters and clips that include sensors for detecting air quality, namely, for detecting components in the form of volatile gases, carbon dioxide, carbon monoxide, pollen or toxins included in air; wearable adapters and clips that include sensors for detecting air quality, namely, for detecting physical characteristics of air in the form of temperature, barometric pressure or humidity of air; wearable adapters and clips that include sensors for detecting air quality, namely, for detecting components of air in the form of oxygen concentration of air or nitrogen concentration of air