BEIJING, Jan. 1, 2016 /PRNewswire/ -- Beijing Tiertime Technology Co., Ltd. (Tiertime) will be demonstrating its second generation of UP mini, the UP mini 2 at the 2016 International CES in Las Vegas, NV. It will be on display from January 6th to 9th, 2016, at Tiertime's booth (No. 72910)...