1, built-in lithium rechargeable more economical
2, the appearance of fine, small and exquisite
3, the use of sophisticated micro-device advanced surface mount technology
4, Baolong series of hearing aids, using the latest integrated circuit production
5, the greater the power noise is less, the sound quality is more clear and less distorted
1, when not in use, turn off the power;
2, the use of dry cloth or hearing aid special cleaning agent spray on the dry cloth to clean the hearing aid shell.
3, hearing aids do not ring the reasons:
* Whether the switch is open;
* Whether the battery is installed in the correct way;
* Whether the battery has electricity;
* Whether the battery compartment is closed;
* Whether the ear plug is blocked by debris;
* Headphones are bad;
* Whether the wire has been broken;
4, hearing aids sound weak or fuzzy:
* Battery voltage is insufficient;
* Headphone failure;
5, the battery life is too short reason:
* When the battery is still in the hearing aid, and not power;
* After the battery is opened, it is placed with the metal or exposed to the air for a long time.
