The present invention is directed to wireless analog audio systems for transmission and reception of a signal from an electric analog audio signal-generating device to an electric analog audio signal-receiving device. The storage area has LCD bit lines to be used for reading out display data stored in memory cells. Also provided is a method for measure the water content. The handle is attached to the head by means of a threaded connection, adhesive, or other suitable means adequate to ensure the handle remains connected to the head, and preferably is removable for storage andor travel. The present invention improves borehole acquisition of targeted geological structures by substantially reducing continuous measurement errors attributable to noise, shock and vibrations from turning the drill bit against rock. The supporting portion supports the cover and fixes the cover on the case.