Product: FENRUIEN Anti-Theft Hard Shell Backpack 15.6-Inch,Expandable Slim Business Travel Laptop Backpack for Men,Waterproof Black Laptop Bag with USB Port
Brand: FENRUIEN
Color: Black
How to unlock and change the password?  1. Modulation password: The default password is " 000 ". 2. Change password: Use a pen or other sharp object to press the reset button. 3. Set a new password: Choose the number you want as your password. 4. Changed successfully: Press the unlock button. When the reset button beeps, the password changed successfully.
[ INVISIBLE EXPAND ] : Dimensions: 17.7 x 12.6 x 4.7 ~ 8.7 inches, capacity: 18L ~ 32L. Expandable backpack has smooth zippers on side. Once pull on the zipper, bag will offer large capacity up to 32L for you to store more stuffs (Laptop pocket size: 15.7 x 11 x 1.2 inches)
[ DOUBLE PROTECTION ] : FENRUIEN armored laptop backpack is made of high-density waterproof PC&ABS hard shell and oxford to ensure your items stay dry during light rain. Thickened pearl cotton and soft polyester lining will protect your laptops from shock and scratch
[ TSA FRIENDLY FEATURE ] : The lightweight travel backpack with scan smart technology can be freely opened 90-180 degrees, allowing you to quickly pass the airport security check and keep your things tidy. TSA customs lock can protect your items from thieves(Please don't set a password before reading the instructions)
[ ERGONOMIC DESIGN ] : Adjustable anti-slip breathable S-shaped mesh shoulder straps with plentiful sponge help relieve the stress from your shoulder. 3D honeycomb breathable back cushion can reduce the sultry feeling of the back
[ SMART USB PORT ] : Built-in removable charging cable is convenient to charge your cell phone by connecting your power bank, this tech backpack can free your hands from power bank (Power bank is not included)

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