Use Method 1. Password Lock (change the Password Way) 2. Initial Password is 000 3. First Time to Change the Password After Turning the Password Wheel to the Initial Password Number, Press and Hold the Unlock Button, Do Not Release It, then Turn the Password Wheel to the Password Number You Want to Change, then Release the Button. Remember, the Number in the Password Wheel is the Changed Password Features: - External USB Design, Fast Charging, Free Your Hands - Ergonomic Design with Adjustable Shoulder Strap for a Perfect Fit on Your Body - Multifunctional Shoulder Bag / Crossbody Chest Bag, Waterproof and Anti-scratch - Security Anti-theft Code Lock, More Secure to Go Out - Concealed Card Pocket on the Shoulder Strap, Convenient for Placing Bus Cards, Etc - Breathable and Decompression Back System, Heat Dissipation, Ventilation and Shock Absorption - Can Be Used for Crossbody Bags / Shoulder Bags / Crossbody Backpacks / Casual Day Bags / Crossbody Bags / Chest Bags / Travel Bags - External USB Charging Interface, You Can Charge Your Cell Phone, Put a Rechargeable Battery in the Backpack -backpack Security Code Lock, Code 000 Unlock, out of the Anti-theft Backpack Removable Hook, Easy to Use and Convenient Specification Material: Oxford Cloth, Pu Color: Multi-color Optional Size: 32x18x9cm/12.6x7.1x3.5in Weight: 430g. Package Includes. 1 * USB Rechargeable Sports Sling Anti-theft Shoulder Bag