Thaum nws los txog rau kev sib txuas hluav taws xob, durability thiab kev ntseeg tau yog qhov tseem ceeb uas yuav tsum tau xav txog. Qhov no yog qhov uas PC303C insulated davhlau ya nyob twg los, tsis tsuas yog nws muaj zoo kub kuj, tab sis nws kuj muaj ib tug elegant saib nrog nws zoo nkauj ceramic tsim. Tsis tsuas yog cov terminals no ua haujlwm tau zoo, lawv kuj ua kom zoo nkauj, ua rau lawv xaiv zoo tshaj plaws rau ntau yam kev siv hluav taws xob.