Traveling to PEK and NRT in May 2016

Hello,

My husband (JAMAICAN PASSPORT, US GREEN CARD HOLDER), daughter 2 y.o. (USA PASSPORT), and I (USA PASSPORT) will be traveling to PEK and NRT in May. We will leave JFK late in the night or early morning 5/1/16, we will not reach to PEK until 5/2 in the night, and then stay in PEK until 5/5 morning/afternoon. Will we be able to get a 72hr visa? Will my husband be able to get one as well?