BANGE BG-2575 Anti theft Waterproof Laptop Backpack 15.6 Inch Daily Work Business Backpack(Black) Filter-Audio Optical Cables PIR wake-up: support three kinds

PIR wake-up: support three kinds of sensitivity wake-up: high

8-inch large-diameter long-stroke unit

One Package Size 16cm * 12cm * 12cm / 6

Data transmission rate: 6800 (MB / s)

BANGE BG-2575 Anti theft Waterproof Laptop Backpack 15.6 Inch Daily Work Business Backpack(Black) Filter-Audio Optical Cables PIR wake-up: support three kinds1. Water resistant fabric, lightweight texture 2. Comfortable foam cushioning pressure inside to protect your laptop 3. Can carry a trolley case, travel and business travel convenient and labor saving 4. Comfortable and breathable back, not strangling shoulder straps 5. USB charging port, convenient charging 6. Material: Oxford cloth 7. Capacity: can fit a 15. 6 inch laptop 8. Weight: 1. 35 kg 9. Size: 48 x 30 x 16cm Specification: Package Weight One