A high tone image is saved in a versatile image file format to enhance usability. The center core component preferably is formed from a sulfur-cured polybutadiene. The motor casing member covers the motor. The transceiver gain and output power is controlled by the microcontroller based on the received signal strength andor the signal-to-noise information from the indoor unit. The insect repellant and the material capable of eliminating odor are added to the fiber in amounts effective to eliminate or substantially reduce odor, thereby helping to prevent insects from locating an individual.