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Hearing aids beurer HA20
1. Ideal for limited hearing ability2. Comfortably mounted behind ear 3. Harden volume from inside and outside the room4. There are 3 choices of accessories for ear hole size5. Included battery (LR754) 6. Speakers max 40dB. Outpur audio max 128dB7. Frequency Range: 200-5000 Hz
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