Q&A for Traditional Stethoscope
A：The diaphragm can be replaced with a new one. Please place your nail under the rim of the chestpiece and gently separate the damaged diaphragm and the chestpiece apart. Place the new diaphragm into the rim and make sure it fits into the rim groove properly.。
A：Please do not use the detergent to clean the device. You can wipe the device with a cotton sheet sprayed with 75% alcohol.
A：When putting on the headset, you should avoid loud sound or knocking on surface of diaphragm.。