information for example the remaining time or any other relevant information furthermore the memory 16 may be used by the microcontroller 15 to store historical data on the frequencies amplitudes duration time and date of each individual treatment sessions and may be transferred to for example a portable computer or any other such device via input output 18 in a particular embodiment illustrated in fig3 the treatment interface 20 may be designed as to be handheld making device 100 advantageously small enough to be easily carried in another embodiment the treatment interface 20 may be placed in specifically positioned pockets 32 on a vest 30 or other clothing apparel such as illustrated in fig4 in a further embodiment the treatment interface 20 may be held by some sort of support about the chest of the patient for example an elastic band 34 held by suspenders 36 and placed across the torso of the patient such as illustrated in fig5 in a sample application referring to fig2 the main unit 10 includes a sbc0386ex microcontroller 15 from micro sys u00ae flash memory 16 keypad 17 rs 232 interface 18 lcd display 19 and an audio amplifier 14 the treatment interface 20 includes a 3 5 inch woofer model rs400 acoustic transducer 22 from bazooka u00ae and an acoustic coupling chamber 24 creating a gap of about 1 5 inches between the acoustic transducer 22 and the chest wall of the patient microcontroller 15 digitally generates a sinusoidal electrical signal which is converted into an analog signal by the microcontroller 39 s 15 internal digital to analog converter dac and then provided to audio amplifier 14 the amplifier.