sony ericsson c902 unlocked faulty -

hi for sale is my unlocked sony ericsson c902 in black it comes with the box and charger but i cant find the usb and it doesnt come with headfphones for hygien reasons,it was working perfectly,but when i turned it on today it turns its self off sometimes for no reason i dont know if there are anymore faults thank you call me dont text if u text me i wont reply!