TWOBARRELS

Binoculars; Headphones; Smartphones; Speedometers; Walkie-talkies; Battery chargers; Bicycle helmets; Bicycle safety lights; Burglar alarms; Camcorder handles; Camera tripods; CD cases; Cell phone cases; Children's eye glasses; Contact lens cases; Digital multimeters; Directional compasses; Distance measuring apparatus; Divers masks; Electric plugs; Electronic locks; Eyeglass chains; Safety goggles; Self-timers; Ski goggles; Smart watches; Spectacle cases; Survival suits; Tripods; Underwater cameras