❤Shipping Warehouse: UK warehouse ❤Delivery method: Royal Mail (with tracking number) ❤Delivery time: within 2 to 4 working days ❤Reply within 24 hours Note: 1. When the microphone is touched during power-on, there will be a whistling sound, which is normal; 2. Turn the hearing aid upside down, aim it at the ear canal, insert the earplug into the ear canal first, and then insert the hearing aid into the cochlea. After wearing it, turn it on for better noise reduction effect; 3. Patients with acute external otitis, myringitis, chronic suppurative otitis media (in the purulent infection period) and acute suppurative otitis media are not suitable for wearing. .
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