OUMANTU 020 Event Computer Bag Oxford Cloth Laptop Computer Backpack, Size: 13 inch(Royal Blue) Filter-Lens Cover The main device will automatically

The main device will automatically alert to indicate danger

The USB cable provides power for this device and charges mobile phones and tablets

Power Power Supply 2 x AA Battery (not included)

Microphone directivity: omnidirectional

General Model DP3

OUMANTU 020 Event Computer Bag Oxford Cloth Laptop Computer Backpack, Size: 13 inch(Royal Blue) Filter-Lens Cover The main device will automatically1. Independent partition, efficient access, easy storage 2. computer padded compartment bag, soft padded lining, an extra layer of protection, peace of mind, shock and fall resistant 3. Soft and wear resistant hand strap 4. Thick shoulder support to disperse the shoulder stress area, reduce shoulder pain 5. Material: oxford spinning, polyester 6. Applicable computer size: 13 inch suitable for 12 13. 3 inch, 14 inch suitable for 14 1. 46 inch, 15 inch