Ma CD ndi zolemba za vinyl zimafuna njira zoyenera zosungira kuti zisakhwime, kupindika, ndi kuwonongeka panthawi yonyamula kapena kusungidwa kwa nthawi yayitali. Ma CD ndi LP abwino kwambiri samangoteteza zowonera zenizeni komanso amawongolera dongosolo, kunyamula, komanso kuwonetsa...
Chikwama cha wotchi chapamwamba kwambiri n'chofunikira poteteza mawotchi amtengo wapatali ku fumbi, chinyezi, mikwingwirima, ndi kuwonongeka mwangozi. Kaya ndi makampani apamwamba a mawotchi, ogulitsa, ogulitsa, kapena osonkhanitsa, kusankha wopanga chikwama cha wotchi woyenera kungakhudze kwambiri...
Ma TV flying box amagwiritsidwa ntchito kwambiri poulutsa nkhani, zochitika zamoyo, makonsati, ziwonetsero, kupanga siteji, komanso mayendedwe owonera. Chikwama chapamwamba cha TV kapena chikwama cha LED plasma TV chimathandiza kuteteza zida zowonetsera zodula ku kugundana, kugwedezeka, fumbi, ndi kunyamula...