A lab-on-chip system comprises an antenna and a communications subsystem to wirelessly transmit information from the lab-on-chip system. The housing includes a lower storage section and an upper display section disposed above the storage section. Then, the modem apparatus calculates a cross product of two vectors from the origin to the coordinates of two consecutive symbols and identifies a control signal from a polarity array configured by polarities of the calculation result arrayed over a span of a plurality of consecutive symbols. Three main cases for lower tone ranges each have four white keys arranged therein, and a main case for a highest tone range has three white keys arranged therein, and a total of 25 keys are arranged on the keyboard apparatus. The aforementioned body is folded inside the case when not in use and is deployed in the event of a vehicle impact by means of a device comprising an inertia sensor which is activated by a deceleration force exceeding 3G and which is powered by a power source comprising batteries or accumulators belonging to the electric circuit of the vehicle or independent batteries.