Control boxes for headphones; Cases adapted for batteries; Plug adaptors for headphones; Covers for smartphones; Covers for tablet computers; In-car telephone handset cradles; Sleeves for laptops; Cases for smartphones; Sheaths for hand held remote control units; Covers for headphones; Mobile phone ring holders; Calibrating rings; Electrical connectors for connecting laptop computers to telephone lines; Containers for contact lenses; Ear pads for headphones