Tri-Fold Bluetooth KeyboardFull-size 105-key layout with 16.5mm keycaps delivers desktop typing in a portable design. Ultra-slim flat typing surface (no tilt) enables effortless portability, while the simple fold-and-go mechanism (no locking clips) ensures quick deployment Business Travel EssentialThe collasible keyboard can folds into a small size(8.46 x 4.68 x 0.78 in) for taking on the go. Internal aluminum hinges survive 10,000+ folds, tougher for frequent trips. The rigid hinge maintains keystroke stability whether you're at a coffee shop or airport lounge