<p>Parameter：</p> <p> </p> <p>Charging box current：≤200mA</p> <p> </p> <p>Charging box input voltage：5V</p> <p> </p> <p>Rated working voltage of hearing aid：3.7V</p> <p> </p> <p>Hearing aid charging current：≤20mA</p> <p> </p> <p>Hearing aid charging voltage：5V</p> <p> </p> <p></p> <p> </p> <p>Accessories list：</p> <p> </p> <p>Charging box: 1 PCS</p> <p> </p> <p>Earplugs: Large. Medium. Small 6 PCS</p> <p> </p> <p>Charging line: 1 PCS</p> <p> </p> <p>Qualfication certificate: 1 PCS</p> <p> </p> <p>Warranty card: 1 PCS</p> <p> </p> <p>Instruction: 1 PCS</p> <p> </p> <p></p> <p> </p> <p>Note:</p> <p> </p> <p>1.Users install and use according to the electromagnetic compatibility information provided by random files.</p> <p> </p> <p>2.Portable and mobile RF communication equipment may affect the performance of in-ear hearing aids.</p> <p> </p> <p>3.Avoid electromagnetic interference when using the hearing aid, such as near the mobile phone, microwave oven, etc</p>