No. Vivo V5s does not have stereo speaker set. It has mono speaker.
Yes, Vivo V5s is a true 4g volte mobile phone.
You will get Vivo V5s, Vivo XE100 earphone, User manual, Micro USB to USB Cable, USB Power Adapter, SIM Ejector Pin, Protective Case and Protective Film (applied) as in-the-box accessories.
Yes, Vivo V5s does have eye protection mode, too.