<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.kwa mfano, lebo za masafa ya chini ni za bei rahisi kuliko vitambulisho vya masafa ya juu uhf, hutumia nguvu kidogo na zina uwezo wa kupenya vitu visivyo vya metali.  <response>: for example, a low-frequency tag is less expensive than an ultra-high frequency uhf tag, uses less power, and has an excellent ability to pass non-metallic substances. 