双轮班电池支持 是什么意思

sorry205

双轮班电池支持在运行GPS跟踪,PTT和BT一次充电•次秒级PTT沟通容易,集团电话 求解释一下 手机这个功能是什么意思？详细点的 谢谢   特别是双轮班电池




英文原文Key Features        Double work shift battery support while running GPS tracking, PTT and BT on a single chargeSub-second PTT communication for easy one to one and group calls  Full range of in-vehicle audio and power accessories to support safe operation          Loud, ultra rugged PTT audio accessories for ground workers in noisy environments          Lowest total cost of ownership in the industry backed by a 3-years comprehensive warranty