7. WEARING PRECAUTIONS
(1) Contraindications: This product is not suitable for individuals who have the
following conditions:
① Absolute contraindications
⚫ loss of auditory nerve;
⚫ Sudden or rapidly progressive hearing loss;
⚫ Recent sudden tinnitus or tinnitus in one ear;
⚫ Unexplained deafness in one ear or apparently asymmetrical deafness;
⚫ Pain in either ear;
② Relative contraindications
⚫ Poor general condition; uncontrollable emotional state;
⚫ Congenital atresia of the external ear or deformity of the external ear, a large
number of foreign bodies in the external auditory canal;
⚫ Unstable deafness with fluctuating degree of hearing loss;
⚫ Symptoms such as headache, dizziness, earache, tinnitus and other obvious
discomfortness;