text: arre,mujhe toh samajh nahi aata yeh smart locks kaise kaam karte hain, kya koi passcode ya app ki zarurat hoti hai, ya bas ek button dabana hai?bas ek button dabana hai, yaar, soch, ghar ka darwaza sirf tumhare phone se khulta hai, aise mein toh kabhi chabi bhoolne ka tension nahi!