Works Amazingly Well
This is my first experience with a hearing aid.  My left ear is completely dead for several years and my right ear is now marginal because of a cold clogging up the Eustachian tube.  The rechargeable TKING hearing aid works fine; no complaints.  In general, the only downside of using a hearing aid is the ability to hear more annoying ambient noise … but that's no fault of the TKING.  The hearing aid is easy to remove and insert and easy to turn on-and-off.  Feels comfortable to wear.  Considering hearing aids can cost several thousand dollars, the TKING is a super bargain!<br /><br />Update 9/26/19 … Attempted to purchase a spare, but the first unit had charging and possibly battery issues and so I returned it.  The second attempt the earpiece generated a loud crackling noise and once again, I returned it.  Is a third time a charm?
Rating: 4 stars