Samsung R850 Caliber Retractable Home / Travel AC Charger (Black) Samsung R850 Caliber Retractable travel charger takes up minimum space. Very simple to put away and leaves no tangled-up wires. Samsung R850 Caliber Retractable Travel Charger is less than half the size of your palm. The wire is 100% retractable. Folding blades allow this lightweight Samsung R850 Caliber charger to become even more portable for travel