Large-capacity Waterproof Expandable Hard Shell Backpack with USB Charging Hole(162 Black) Type-IP Camera Soft interior design

Soft interior design

Number of keys: 5

EVA material shell

Built-in smart chip to ensure stable output of current and voltage

Five functions: mouse function

Large-capacity Waterproof Expandable Hard Shell Backpack with USB Charging Hole(162 Black) Type-IP Camera Soft interior design1. Material: ABS 900D strong film, EVA, polyester 2. Function: waterproof, with USB charging hole, shock resistance, capacity expansion, cut resistance, dry and wet separation 3. Accommodates computer size: 17 inches 4. Design of USB charging interface on the side of the bag 5. Widened and thickened handle design, comfortable and durable 6. Two way zipper, more convenient to open and close 7. Side handle design, a variety of carrying methods 8.