 In this video, we will show you around the hearing aid. At the bottom of the hearing aid, there is the left or right marker. The left-sided hearing aid, such as this one, has a blue marker. The right-sided hearing aid have red markers. At the bottom of the hearing aid, there is also the lip for the battery draw. Pull on the lip to open the battery draw, which also turns off the hearing aid. To turn the hearing aid on, close the battery draw. Next to the battery draw, there is the volume stick. Rock the stick upwards, and the volume will increase. Rock the stick downwards, and the volume will decrease. There is also the program button on the hearing aid. Simply press the button to activate different programs. If there are different programs on your hearing aid, your audiologist will let you know in advance. Next to the program button are the microphones. Ensure the microphones stay clean, otherwise the hearing aid will not be able to pick up sound. The sound travels through the plastic hook, and the tubing, and through the mould. This is what your hearing aid looks like.