JB developed a smart phone called "Yao Qian Shu A9". Yao Qian Shu is a type of small tree with round leaves in the size of old time coin. When you shake the tree the coin-like leaves will fall.
The A9 smart phone has a POS terminal function so the store owners can use it scan cards for payment. JB developed an app which allows people view commercials or other materials containing soft commercials and get credits to buy stuff online. It get very popular among old people who stay at home have nothing to do, by viewing online material they can make money.
"Shake dry tree" better describes DOLV right now, there is no much leaves to be shaken off the tree, no matter how hard MMs try to.