Apparatus for wireless transmission of acoustic information; Batteries; Cameras; Cases for mobile phones; Cell phone cases; Computer bags; Computer network interface devices; Computer peripherals; Data processing equipment, namely, couplers; Ear phones; Electric cables, wires, conductors and connection fittings therefor; Electric and electronic video surveillance installations; In-car telephone handset cradles; Intercoms; Loud speakers; Personal headphones for sound transmitting apparatuses; Power adapters; Power strips; Protective covers and cases for tablet computers; Rechargeable electric batteries; Slide projectors; Stands adapted for tablet computers; Tablet computers; Telephone sets; USB cables