Large-capacity Waterproof Expandable Hard Shell Backpack with USB Charging Hole(161 Light Grey) Bicycle Accessories BT streaming (play music from

BT streaming (play music from the phone via BT)

File save view

Induction distance: 3-5 meters

4 2005 year and after

Large-capacity Waterproof Expandable Hard Shell Backpack with USB Charging Hole(161 Light Grey) Bicycle Accessories BT streaming (play music from1. 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.