v  Total harmonic wave distortion: ≤5%

v  Frequency range: 300-4000Hz

v  Input noise: ≤30dB

v  Voltage: DC3.7V

v  Current: ≤4mA

Usage

v  Please connect the earplug with the earphone, and then connect the earplug with the earplug socket.

Switch ON-OFF

v  When the switch is in “ON” position, the Microphone is connected. When the switch is in “OFF” position, the hearing aid stops working.

Maintenance

v  If you can’t hear from the hearing aid, please check the following steps :

1.       If the power is switched on.

2.       if the earplug is blocked by a foreign object.

3.       If the earphone is damaged.

4.       If the lead is broken.

Keeping Method

v  The hearing aid should be kept in a room that is dry, well-ventilated, and with Relative Humidity is less than 80%, with no corrosive gas.

Rechargeable Instruction

v  Lithium battery of the hearing, aid, its capacity is 70mAh, and it can work for about 20 hours continuously after fully charged.

v  Don’t keep the hearing aid in an environment of over-high or over-low temperature.

v  The battery has its life period, if you find that it doesn’t perform well, or can’t maintain its usual operation.

v  Change the new battery with the same code as the replacement.

Operation instruction

v  Connect the larger data cord terminal to the Data cord socket of the charger and connect the smaller terminal to the charger input socket.

v  Insert the charger plug into the power supply socket.

v  During charging, the Green light is on, Red light is also on at the same time. When it is fully charged, the green light will be on.

v  First charging will take 8 hours to get full charging, for future charging, it only takes 2 hours.

v  Must use the appointed charger to charge the cell, make sure that the power supply is the same as the rated power of the charger. The charging time should be less than 12 hours.