Air analysis apparatus; Battery chargers; Data processing equipment, namely, couplers; Earphones; Electric cables, wires, conductors and connection fittings therefor; Electric contacts; Electric wires; Headphones; Loudspeaker cabinets; Rechargeable electric batteries; Smartglasses; Smartwatches; Wearable activity trackers; Cases for smartphones; Covers for smartphones; Electrical plugs and sockets