Мы ответим на Ваши вопросы
Гарнитуры (с микрофоном) для ПК
select st1+st2+st3+st4+st5 as count, st5 as sklad 0 as stor from catalog_params where idt=5742 limit 1
select st1+st2+st3+st4+st5 as count, st5 as sklad 0 as stor from catalog_params where idt=5711 limit 1
select st1+st2+st3+st4+st5 as count, st5 as sklad 0 as stor from catalog_params where idt=5712 limit 1
select st1+st2+st3+st4+st5 as count, st5 as sklad 0 as stor from catalog_params where idt=5711 limit 1
select st1+st2+st3+st4+st5 as count, st5 as sklad 0 as stor from catalog_params where idt=5712 limit 1