, ▁often ▁known ▁as ▁Nord ic ▁Sem i , ▁to ▁reflect ▁the ▁company ' s ▁full ▁focus ▁on ▁ult ra ▁low - power ▁wireless ▁devices . ▁The ▁same ▁year ▁saw ▁the ▁release ▁of ▁Nord ic ▁Sem icon duct or ' s ▁first ▁wireless ▁devices ▁at ▁ 2 . 4   G Hz . ▁Since ▁ 2 0 0 3 , ▁Nord ic ▁Sem icon duct or ▁has ▁maintained ▁a ▁clear ▁focus ▁on ▁wireless ▁products ▁for ▁the ▁ 2 . 4   G Hz ▁band ▁and ▁has ▁seen ▁its ▁devices ▁used ▁in ▁a ▁wide ▁range ▁of ▁brand ed ▁consumer ▁electronic ▁products . ▁Nord ic ▁Sem icon duct or ▁maintain s ▁an ▁especially ▁dominant ▁position ▁in ▁the ▁wireless ▁sports ▁and ▁fit ness ▁and ▁wireless ▁desktop ▁peri pher al ▁mark ets . ▁ ▁Nord ic ▁Sem icon duct or ▁have ▁products ▁that ▁support ▁ 3 ▁main ▁connect ivity ▁top ologies : ▁Bl uetooth ▁low ▁energy , ▁AN T , ▁AN T + ▁and ▁ 2 . 4   G Hz ▁propriet ary ▁protocol s . ▁▁ 2 0 1 2 ▁saw ▁the ▁release ▁of ▁Nord ic ▁Sem i ' s ▁third ▁generation ▁of ▁ult ra ▁low ▁power ▁wireless ▁products . ▁This ▁family ▁of ▁products ▁is ▁named ▁the ▁n R F 5 1 ▁series ▁and ▁they ▁incorpor ate ▁the ▁AR M ▁Cor tex - M ▁series ▁micro cont rollers ▁at ▁their ▁core . ▁In ▁ 2 0 1 5 ▁Nord ic ▁Sem icon duct or ▁introduced ▁their ▁new est ▁ 2 . 4   G Hz ▁IS