With age or due to the influence of the noisy environment, hearing impairment is becoming an important factor in people's quality of life. In order to help people with hearing loss better integrate into society and enjoy a clear communication experience, many hearing aid products have emerged in the market.
Left Point Technology has launched an in-the-ear hearing aid, which stands out for its user-friendly design and convenient user experience. The left-point in-the-ear hearing aid has 24 adjustable EQ channels, built-in WDRC dynamic range compression technology and AI adaptive scene recognition, and can achieve a sound gain of 36 decibels. It can be self-fitted at home, which is suitable for the elderly with limited mobility.
This left-point in-the-ear hearing aid has arrived at the I Love Audio Network review room. How does it perform, let's follow the footsteps of I Love Audio Network to explore this hearing aid product.
Guided tour
The left point in-the-ear hearing aid is a hearing aid that costs about 1,000 yuan, and this article will experience it from many aspects such as unboxing experience, hearing aid design, functional characteristics, wearing comfort and hearing aid effect. The logical structure of the article is as follows, and you can quickly find relevant content based on the subheadings in the article.
- Guided tour
- Product unpacking and design, packaging and accessories, product appearance design
- Upper ear experience, wearing experience function, using hearing aid experience
- Data: Measured weight, measured charging and battery life
- I love the audio network summary
Product unboxing and design
Packaging & Accessories
The left-dotted in-the-ear hearing aid packaging is orange and has a simpler design. The front is printed with the Chinese and English logo and product name on the left. And the scope of application of this hearing aid is indicated in the upper left corner: it is suitable for hearing compensation for patients with air-conductive hearing loss.
On the back, there is relevant information such as product model and manufacturer. The model is ZD-ZT6N, the manufacturer is Zuodian (Hunan) Technology Co., Ltd., medical device registration certificate number: Hunan Machinery Note 20212191653.
Remove all contents as above, including the left dot in-the-ear hearing aid body, cable, and quick start guide. In addition, in addition to the box, a storage box, lanyard and paper tote bag are included.
The included white charging cable is USB-A to USB-C, with a length of about 1 meter.
Product design
The left-point in-the-ear hearing aids have a similar appearance to AirPods, with a bright white surface. In the middle of the front is an indicator light, and there is a recess design for easy unboxing.
The hinge connection on the back of the charging case is a silver trim plate.
USB-C charging port at the bottom of the charging case.
There is no left dot logo, product name or specification information on the whole body of the charging case, which is relatively simple.
When the lid is opened, the white hearing aid unit is recessed into the cockpit, and you can see the microphone hole on the main unit.
Remove the hearing aids and the interior of the cockpit is shown in the picture above. There are two pairs of elastic contacts in the cockpit for charging the hearing aid unit and pairing communication.
A list of the body of the in-the-ear hearing aid at the left point. The main difference between hearing aids and TWS earphones is that in terms of sound design, the left ear hearing aid only has one sound outlet hole, and the structure is small, which can penetrate deep into the ear to provide clearer sound.
In addition to the copper-colored contacts, the inside of the hearing aid is the L and R marks that distinguish the left and right.
Upper ear experience
Wearing experience
Left point in-the-ear hearing aids are worn in a similar way to in-ear headphones, with no threshold for wearing, low learning cost, and user-friendly. In terms of appearance, the left point behind the upper ear is not much different from the TWS earphone, and it will not cause psychological burden to hearing patients when wearing.
Thanks to the ergonomic design, the left point in-the-ear hearing aid is more skin-friendly, does not squeeze the inside of the ear, does not cause too much pressure on the ear, and is more comfortable to wear for a long time. During daily use, especially in activities with a large head amplitude, hearing aids are also relatively secure to wear and are not easy to fall off.
Use of features
After connecting to your phone, you can control your hearing aids through the Voice App from the left point. Software and hardware work together to take an online hearing test to find out how much you have hearing loss.
Unlike headphones, the most important thing for hearing aids is to adjust the volume of the hearing aid. Therefore, the function of adjusting the sound is placed in the most visible position on the home page, and there are a total of four levels of volume that can be adjusted, in addition, you can also adjust the volume of the left and right ears separately. For patients with different left and right ear disorders, independent tuning is still more humane.
The left point provides convenient at-home fitting services for hearing-impaired patients, which is convenient for the elderly and solves the problem of inconvenient fitting at home. Users can use the Left Voice App to achieve online fitting or edit the audiogram according to their personal hearing condition. The algorithm of the left point will personalize the audio frequency compensation of the user's left and right ears to find the appropriate hearing effect for the patient.
In addition, if users encounter difficulties in the self-fitting process or need professional guidance, Zuodian also provides one-on-one remote fitting services. With the remote assistance of our professional hearing care professionals, users can get a more precise and personalized audio adjustment plan to ensure that patients can find the right listening experience for them.
The Left Point Sound App has carefully designed three noise reduction modes, which are for different use environments. Normal mode, suitable for most outdoor environments, can effectively reduce the surrounding noise interference, so that users can have a clear hearing experience outdoors. Noise Cancellation Mode, especially designed for relatively quiet park or street environments, intelligently adjusts the noise cancellation level to maintain a certain level of environmental awareness while reducing unnecessary noise. Strong noise cancellation mode, suitable for noisy environments, such as public places and other places, can reduce low-frequency noise.
Assistive listening experience
For people with normal hearing, if they use hearing aids, they may feel that the sound is amplified and becomes unusually clear, especially high-frequency sounds may feel too sharp. In the normal mode of hearing aids, all frequencies of sound, including low-frequency noise, are enhanced, which can cause the sound to sound unnatural and uncomfortable.
However, for people with hearing loss, hearing aids provide the necessary frequency compensation, especially to enhance high- and low-frequency sounds, which are essential for them to understand language and environmental sounds. Hearing loss often affects certain frequencies of sound, especially the high-frequency part, which can make it difficult for people with hearing loss to hear conversations clearly. Therefore, hearing aids help them better hear and understand the sounds around them by enhancing the sounds of these frequencies.
The editors of I Love Audio Network noticed how well the hearing aids processed high-frequency sounds when they auditioned for left-point in-the-ear hearing aids. As a result, the sound is much crisper, especially when dealing with high-frequency sounds such as keyboard clicks and door openings.
When it comes to vocal conversations, hearing aids improve the intelligibility of speech and help hearing-impaired people better understand speech. Hearing aids often optimize the frequency range of the human voice to enhance critical speech frequencies while reducing the distraction of background noise, making conversations easier to listen to and understand.
Data measurement
Measured weight
As an in-the-ear hearing aid, the left dot is similar in size and weight to TWS earphones. I love audio network uses high-precision scales to measure, the left point of the in-the-ear hearing aid weight of a single ear is 4.4 grams, relatively lightweight.
The total weight of the hearing aids and headphones is 56.7 grams.
Charging and battery life test
THE REAL-TIME CHARGING POWER OF THE LEFT DOT IN-EAR HEARING AID IS 1.54 WATTS USING THE CHARGERLAB POWER-Z PROFESSIONAL TESTER.
In terms of battery life, the left-point in-the-ear hearing aid can last for about 5 hours in one ear when the volume is turned on in the fourth level, and about 25 hours when used with the charging case. For hearing aids that need to be worn throughout the day, 5 hours is clearly not enough.
Connection distance test
Hearing aids are different from wireless headphones in that they can be used separately from mobile phones for daily use. However, the left-point hearing aid can also make and receive calls, play music, etc., and it is necessary to test the connection distance of Bluetooth when used with a mobile phone.
We connect the left point in-ear hearing aid to the mobile phone, fix the mobile phone at the front desk, and wear the earphone to A, B, and C for a total of 3 points to test the connection stability and anti-interference performance of the earphone.
Thereinto:
Route point A: total distance of 8 meters, through a plasterboard wall;
Point B route: 16 meters in total, through 16 workstations, with a large number of wireless devices at work in the route;
Route C: 12 meters in total, through two plasterboard walls and some office workstations.
The test found that the left point in-ear hearing aid played music normally at A, B, and C, and the hearing aid maintained a stable connection with the mobile phone.
I love the audio network summary
The left-point in-the-ear hearing aid has a similar appearance to TWS earphones, making it easy to carry. The white hearing aid body is also more like a headphone, which is suitable for daily wear, and there are also self-fitting and remote fitting services on the app, so users can use the hearing aid directly without going out. In addition, for different usage scenarios, the Left Point hearing aid provides three modes: normal, noise reduction and strong noise reduction, which users can choose according to their needs. However, there are still certain limitations in its battery life, and follow-up products need to be strengthened.
For users with hearing challenges, the Left Dot In-Ear Hearing Aid is not only a hearing aid, but also a tool to improve quality of life and enhance social skills. It is hoped that in the future, Zuodian Technology will continue to innovate and launch more hearing aid products with perfect functions and better experience, so as to bring a more colorful sound world to the hearing impaired.