Description
Innovative Conical Structure Design
The TangZu Tang Sancai Narrow Bore Eartips feature a completely new internal conical structure, setting them apart from previous versions. After rigorous testing and modifications, this design enhances the narrow bore's characteristics by ensuring a precise path for sound waves at the speed of sound. Adjustments to the tube's hardness and length have been carefully made to optimize performance. Additionally, the eartips showcase a unique double flange-like shape for deep insertion, providing both improved acoustics and a distinct appearance.
Unique Wall Texture for Comfort and Stability
These eartips boast a special wall texture that serves a dual purpose: efficient pressure release and a secure, comfortable fit. The textured pattern ensures the eartips stay firmly in place during extended listening sessions, offering optimal comfort and reducing the risk of slippage.
Enhanced Sound Quality with Narrow Bore Diameter
The narrow bore diameter plays a critical role in achieving sound balance and enhancing audio performance. Through extensive analysis and testing, the ideal sound profile was attained. The narrow bore design significantly improves low-frequency quality while maintaining clarity, resulting in a well-balanced and immersive listening experience.
Safe and Comfortable Medical-Grade Material
Crafted from medical-grade hypoallergenic silicone, these eartips minimize the risk of allergic reactions, ensuring a safe and comfortable listening experience. The soft, skin-friendly material enhances comfort, making the eartips so comfortable that you might forget you're wearing them.
Optimized Core for Durability and Sound Precision
The Tang Sancai Narrow Bore Eartips feature a shorter core that is specifically designed to enhance sound clarity and responsiveness. Despite its compact size, the thick core provides resistance to deformation, ensuring durability and long-lasting performance. These eartips are engineered to deliver high-quality audio while standing the test of time.
I like Tangzu wide bore eartips but these narrow bore tips didn't fit well in my ears.
Enhanced bass response

Description
Innovative Conical Structure Design
The TangZu Tang Sancai Narrow Bore Eartips feature a completely new internal conical structure, setting them apart from previous versions. After rigorous testing and modifications, this design enhances the narrow bore's characteristics by ensuring a precise path for sound waves at the speed of sound. Adjustments to the tube's hardness and length have been carefully made to optimize performance. Additionally, the eartips showcase a unique double flange-like shape for deep insertion, providing both improved acoustics and a distinct appearance.
Unique Wall Texture for Comfort and Stability
These eartips boast a special wall texture that serves a dual purpose: efficient pressure release and a secure, comfortable fit. The textured pattern ensures the eartips stay firmly in place during extended listening sessions, offering optimal comfort and reducing the risk of slippage.
Enhanced Sound Quality with Narrow Bore Diameter
The narrow bore diameter plays a critical role in achieving sound balance and enhancing audio performance. Through extensive analysis and testing, the ideal sound profile was attained. The narrow bore design significantly improves low-frequency quality while maintaining clarity, resulting in a well-balanced and immersive listening experience.
Safe and Comfortable Medical-Grade Material
Crafted from medical-grade hypoallergenic silicone, these eartips minimize the risk of allergic reactions, ensuring a safe and comfortable listening experience. The soft, skin-friendly material enhances comfort, making the eartips so comfortable that you might forget you're wearing them.
Optimized Core for Durability and Sound Precision
The Tang Sancai Narrow Bore Eartips feature a shorter core that is specifically designed to enhance sound clarity and responsiveness. Despite its compact size, the thick core provides resistance to deformation, ensuring durability and long-lasting performance. These eartips are engineered to deliver high-quality audio while standing the test of time.
I like Tangzu wide bore eartips but these narrow bore tips didn't fit well in my ears.
Enhanced bass response
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OUR HONEST REVIEWS FROM THE CO-FOUNDERS & AUDIOPHILES
View allTRUSTED BY OVER 35K+ MUSIC ENTHUSIAST
Let customers speak for us
from 4836 reviewsAs a v16 owner this is a worthy upgrade .
Fit :
The iem is designed aesthetically that it fits like custom made
Sound impressions :
Treble is perfectly done with being sibilant, Mids sounds very organic and clear, Bass is the best part here it's a step up from their previous flagship v16.
Staging is better and so is the resolution, A total flagship level iem which punches above the price tag
Thanks to Pritam for his exceptional customer service and deal .
Definitely recommended

Have a great features and I am very happy after buying this m71 thanks audio store 🙏🙏

Time Spent with this DAP is more than 50 days, used many IEMs from Budget range to high end.
OBSERVATION & EXPERIENCE SO FAR.
- Wide soundstage, it's creating a spacious listening experience.
- Smooth and refined sound, with good bass & trebles. I liked it.
- little high Volume doesn't hurt ears because of spaciousness which this DAP creates.
- Main unique point is Vocals & Instruments separation, it's best.
- So far, I noticed Battery back up is really good. Will check it over time and provide feedback.
- Does not get warm that too after using for hours.
- Best software & Shanling Music app, it's very fast ( I use 1TB fully loaded Micro SD card.)
Please Note - Little more care is needed while handling as it has Glass tubes. Again it's unique offering & tubes makes music more enjoyable.
CONS-
1. Charging time ( it will get solve by software updates in future, Brand has co
nfirmed it in their post)
2. Only one colour option is available from Brand.
3. Some settings currently not present, Brand may add in future updates ( DSD gain Compensation, PEQ, MSEB, Night light short cut in quick pannel)
CONCLUSION-
a. Highly recommend those who want detailed & immersive experience.
b. THREE IN ONE- One DAP but three modes, all three sounds differently. One mode Transistor (without Tubes) and two Tube modes (Triode & Ultra- linear).

Sterdy & beautiful cable. I am using it with Hidiz MP145 Planner Magnetic IEM. It add details to music over stock cable. Makes all aspect of sound quality better.

I am writing review after One month regularly uses with my two DAP - Shanling M8t, Hiby R4.
POSITIVES-
1. Best Soundstage
2. Balanced sound
3. Musical & Makes music more enjoyable to ears.
4. No fatigue despite of metal construct.
5. Weight distribution is really good.
6. Largest Magnetic planner in the Category.
7. Details & instruments separation at best.
CONS-
1. Small ears may face challenge. Plz contact team ATS before purchase. Normal ear size, No issues with fit & long usage.
2. Stock cable is good but doesn't suit this IEM.
I am using this with Divinus Auram cable, which goes really well with this by appearance as well as by performance.
CONCLUSION-
1. Very very happy with the purchase. It's my main IEM in daily music journey.
2. My suggestion is Music enthusiast must have atleast one 'Planner Magnetic IEM', believe me I found that the the songs which I am listening since decades are sounding differently with some more details with this IEM.

The KZ Castor is an excellent choice for budget audiophiles. It delivers superb sound quality that rivals much more expensive headphones, with clear highs, rich mids, and deep bass. The build quality is solid, offering both durability and comfort for long listening sessions. At its price, it’s a fantastic value, outperforming many premium options. Highly recommended!

i think it's a great choice for someone who's just starting with the "iem" audiophile thing and it sounds good pretty good for the price range, it's sound clear and crisp, the bass is a little on the lower side but nonetheless great product if you are just starting, oh and yes the delivery was fast got it in a day.

Delivery was fast and item received was in good condition

Lets get to the point, its the best budget IEM!
I have been in the IEM space for more than 6 months and I was looking for a daily driver that can handle rough use, and then Pritam Sir suggested me 7Hz G1. And it failed to disappoint me!
A nice high quality well built iem, with one of the best ergonomic design, and a proper sound isolation with tons of tip to choose from.
The iem is well tuned with proper instrument seperation and clarity, warm tuning with perfect bass and excellent soundstage compared to other budget IEMs.
If you are new to yo IEM and want to buy your first IEM, blindly go with this! Trust me you would not regret! For 3.2k, its a steal deal!
(Pro Tip: Always listen to Pritam Sir's suggestions. He is the G.O.A.T)

We had an amazing experience at The Audio Store. Pritam, the shop expert, was incredibly helpful and knowledgeable. He patiently guided us through the world of in-ear monitors, explaining all the details and helping us understand what would work best for our band, Rhythm Freak. He suggested options that perfectly matched both our budget and our musical needs, making sure we got the best value without compromising on quality. Thanks to his expertise, we walked out confident and satisfied with our purchase. Highly recommend this store to any musician looking for top-notch gear and excellent service

Sound quality ausom but not for base lover's

Top notch earphone Mike quality 🔥.gaming, music etc highly recommend ❤️🎧

I believe this is the best tws under 10000 rupees also it is an iem

Thank you audio store. The sound is amazing. It was delivered within time and product was perfect.

Very detail iem for the price not bass heavy