Business/School/Travel Backpack is very spacious. Especially designed for electronic equipment. External 3.5mm aux port. Very roomy with a large number of compartments and pockets. A large compartment holds a 17″ laptop which is surrounded by filled sponge and delivers good protection. The handle has rivet reinforcement with steel wire inside and an elastic buffer strap. Great for school, business and travel. This bag will meet all your electronic travel needs!