Bunyi agk dgr jga la kcuali pkai mode massage, mode lain semua dengar sikit. On my opinion, xsesuai utk yg kerja dental, sbb dieorg dduk assist sebelah telinga patient. So mmg lg obvious patient dgr kita pump😂tpi dri segi function smua alhmdulillah smooth and also xsakit at all👍🏻