【Multi Channel Use】The classroom, office, conference room, factory, game park can be used freely, which is convenient and worry-free, and the label paper design is convenient and effortless to find. 【Metal Material】The box body is made of Aluminum alloy material + plexiglass, wear-resistant and pressure-resistant box body, light and thin but full of toughness and convenience. 【Anti-wear Design】The built-in EVA + pearl cotton double-layer protection material is used to prevent abrasion, aluminum alloy comfortable handle easy to use in various occasions. 【Portability/Safety】The hand-held arc is comfortable to handle, and it is portable and easy to walk away. The safety lock design adopts high-quality hardware lock, which is more secure. 【Customer Service】Please let us know when you have any questions about our products since your voices are significant when solving your problems.