Currently, the use of the band 614-698 MHz by low‑power radio apparatus, including wireless microphones, is on a licensed and licence‑exempt basis. Apparatus approved under RSS-210, Licence‑Exempt Radio Apparatus: Category I Equipment do not require a radio licence to operate in Canada, however, users of such LPAs may voluntarily obtain a licence in order to minimize the likelihood of radio interference from whitespace devices and wireless microphones operating on a licence‑exempt basis (refer to CPC-2-1-28, Voluntary Licensing of Licence‑Exempt low‑power Radio Apparatus in the TV Bands ).