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2.2 Place battery Step 1: A13 battery used, put the sticker off from the zinc ear battery, place the battery into the machine after 1 minute later Step 2:...
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Exchange modes 1. You can exchange modes by short pressing Modes Swapping button, DU sound is mode 1, DUDU is mode 2, DUDUDU is mode 3 2. It will back to mode 1 (normally mode/quite mode) once you take out the battery and turn on the machine 3.
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Volume control To adjust the volume by pressing volume control, when Max. & Min., you will hear “Dudu” DOWN...
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6. Initial use and operation 1 Choose one of the three different sizes of earplugs that fits your own, and attach to the end of the sound tube with the connector. 2. The other end of the sound pipe is fitted to the ear hook of the host Carefully push the ear piece in the ear canal •...
7. TROUBLESHOOTING Check the following if the device should fail during operation. Problem Solution No sound or weak sound - Turn on the devices; - Remove and re-install the battery; - Replace the battery; - Contact your distributor; - Clean or replace the tube or earplug. Hearing aid emit an an alert signal - Replace the battery.
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Selling point of this machine 1. Super power 62dB fit for moderate & severe hearing loss people 2. Wide Dynamic Range Compression (WDRC) Your Device are available for the WDRC function , which allow more gain for soft sounds, and less for loud, Little need for manual adjustment 3.