Hearing Aid
HEARING AID

Cadenza E33 Digital 2 Channels USB Rechargeable RIC Hearing Aids

  • 2 Channels
  • 4 Bands
  • 6dB Noise Reduction

  • Description
  • Features
  • Technical Specification
  • Steps for Wearing

Our E33 is a non-programmable digital RIC hearing aid with pristine sound, easy to operate, intelligent noise reduction. It use rechargeable lithium battery, with VC for volume control and switch for ON/OFF. Suitable for mild-moderate hearing loss user with conduction, sensorineural and mixed hearing loss.


More convenient for dispenser sales, and also, more convenient for user to change volume through handy VC. Cadenza E can be sold at pharmacy shops, online shops and hearing clinics etc.

2 Channels
DSP Chip
Feedback cancellation
Wearing Comfortable
Intelligent Noise Redction
Multi-funtion button for VC,
Program switch and power On/Off
Open-fit ear domes and closed ear domes
Regular micro USB cable can be used to charge the hearing aid
Technical specifications Cadenza E41/E39/E37/E35/E33
Max OSPL90(dBSPL) 112
HFA OSPL90(dBSPL) 106
Peak Gain(dB) 37
HFA FOG(dB) 32
Frequency Range F1≤200Hz, F2≥7180Hz
THD at 500/800/1600HZ 0.30% / 0.40% / 0.80%
Eq. Input Noise Level(dB) 26.9
Battery Current Drain(mA) 1.32
Attack Time 5
Release Time 30
1. Charging RIC Hearing Aid
Charging the hearing aid by using the power adapter (output voltage: DC 5V±5%, current output ≧ 200mA) via USB cable
While charging, the indicator light shows red.
After fully charged, the indicator light is off;
When insert USB cable for charging, the hearing aids switch to power off status. After pull out USB cable, the hearing aids turn back to working status.
Fully charged time is about 6 hours.
2. Power On/Off
Power on: Push button down to start working. It will be a signal sound come out.
Power off: Push button up, hearing aid stop working.
3. Wearing Hearing Aid
Accessories installation:

1.1 Choose the proper earplug, put the earplug into tube connector.

The steps of wearing RIC hearing aid:

2.1 Pinch the earplug gently with the index finger and thumb, aligned with the direction of the ear canal and smoothly rotating the earplug into the ear canal.


2.2 Use the other hand to pull back the auricle and then move the earplug forward and backward to place the earplug in an appropriate position so as to fit it in the ear canal.





2.3 Placing the hearing aid behind the ear, close to the head and comfortably hang on the auricle. d)Removing Hearing Aid Take off the hearing aid behind the ear. Use the index finger and thumb to softly pull the earplug forward or backward to loose the earplug, and take out of the earplug. Then take down the BTE hearing aid and ear mold or earplug together.

4. Volume Control/Program Switch
Volume Control:
Push “+” to increase the volume and push “-” to reduce the volume. Adjust to maximum or minimum, the volume cannot be increased or decrease. There are two hint sounds in the process of volume adjustment. There is only a hint sound when the volume is adjusted to the limitation. This device has the volume memory function: When hearing aid is in a certain volume level and continuously works for 10 minutes or more, then it is turned off. It will return to the same volume setting when turned back on.
Cadenza E RIC Program Switch:
Push “+” or “-” more than 2 seconds, switch to programs control. User can push “+” or “-” to select the programs.
This hearing aid have the program memory feature: When hearing aid is in a certain program mode and continuously works for 10 minutes or more, then it is turned off. It will return to the same program setting when turned back on.

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