The cause of howling/noise: The internal amplifier and the microphone are close to each other of the hearing aid, and the sound is continuously received and expanded, so it has a certain possibility of produce howling after power-on.
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1 x Pair Hearing Aids. With bluetooth function, you can listen to songs and make calls. If you hear a howling, check the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage.
eBay
1 x Pair of Hearing Aids. With bluetooth function, you can listen to songs and make calls. If you hear a howling, check the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage.
eBay
Digital Carbon Monoxide (CO) Detector Warning Alarm Sensor Air Humid w/ Battery. MP3 MP4 Player HiFi Lossless Sound Bluetooth Music Voice Recorder DSD FM Radio. Crankshaft Position Sensor for Audi A1 A4 Q3 Seat Ibiza Leon Skoda Octavia Yeti.
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Hearing Aids Bluetooth-Compatible 5.3 Earphone Hearing Amplifiers Hearing Aids Bluetooth-Compatible 5.3 Earbuds Hearing Aid Mini Sound Amplifier Wireless In-Ear Earbuds for Seniors Severe Hearing Loss.
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Features: 1. BT Connection, Answer Calls, Listen To Music, Watch TV; 2. Silicon material, very soft, safe to use; 3. Smart Chip, Intelligent Noise Reduction; 4. Big Capacity Battery, Charge For 2 Hours, Use For 40 Hours; 5. One power button, one volume control, M button for Bluetooth Function, easy to use. 6. FCC, ROHS, CE, EMC Certifications available. .
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Carbon Monoxide Detector Alarm - Digital LED Display - Battery Powered CO Sensor. Extendable Dog Flirt Pole Teaser Wand Training Exercise Made for Fun & Exercise. Hearing aid mode can be used in both cases; Bluetooth mode only supports single-ear mode, two do not support pairing;.
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1- Earbud comfort taken to a new level: Lightweight plus Neck loop design, different from ordinary headphones, non-intrusive BKM100 wireless earbuds for tv bring you a burden-free wearing experience.
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