Product Name: Hearing AidProduct gross weight: 200.00gPower supply: 7 batteries (without battery)Adapt to the crowd: mild weak hearing peopleProduct Size: 6.6 × 4.3 × 1.6cmSuitable crowd: for people with moderate and severe hearing lossProduct performance:Very large saturation sound pressure level: ≤ 129dB + 3dBRated power current consumption: should be ≤ 10mAEquivalent input noise level: The actual measured value should be ≤32dBFrequency response range: not narrower than 450Hz ~ 3000HzThe actual measured value should not exceed 10% The output sound pressure level 120dB ± 4dB Full file sound gain 50dB ± 5dBOnly a 7th battery life 2-3 monthsInstructions for use: Hearing aid installationPlease plug the earbuds (hard rubber) connected to the headset, and then soft earplugs received hard rubber particles, and then the wire jack corresponding to the size of the jack inserted into the headsetPlease plug earplugs and try to plug the power switch or O-T-M file into the ON file or M file, and then adjust the volume control to hear a clear soundIf you feel N sound is empty or noisy, please dial N-H fine-tuning H file can compress low-frequency sound, it will feel more comfortable.
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