ZZN ZT02 Wireless Earbuds Review

Published on June 25, 2023, 6:13 p.m.

In-ear wireless headphones have become ubiquitous in recent years due to their portability and convenience. The ZZN ZT02 wireless earbuds aim to provide quality sound and reliability in an affordable package. In this review, we will examine the design, features, audio performance, battery life, and overall value of the ZZN ZT02 Wireless Earbuds.


The ZZN ZT02 Wireless Earbuds feature an in-ear design with soft rubber ear hooks for secure fit during workouts. They utilize Bluetooth 5.0 for wireless connectivity and are IPX7 waterproof, making them suitable for exercise. Key features include powerful bass, instant auto-pairing, on-ear controls, long battery life, and a USB-C charging case.
 ZZN ZT02 Wireless Earbuds

Key Features

  • Bluetooth 5.0 for stable connectivity
  • IPX7 waterproof and sweatproof
  • Flexible and secure earhooks
  • Powerful bass with 11mm drivers
  • 30 hours total battery life
  • Easy button controls
  • Auto power on and pairing

 ZZN ZT02 Wireless Earbuds


The ZZN ZT02 Wireless Earbuds have an understated design that comes in several color options. The earbuds themselves are fairly small and lightweight, weighing only 9.5g each. The ear hooks keep the buds firmly in place during movement. The kit includes small, medium, and large eartips to customize fit. The charging case is compact with an LED battery indicator and USB-C charging.

 ZZN ZT02 Wireless Earbuds

Sound Quality

With 11mm drivers, the ZZN ZT02 Wireless Earbuds deliver impactful bass and solid stereo separation. The sound has clean highs and mids with thumping low end, providing an immersive listening experience. They can get loud enough for workout music without much distortion. The ear seal blocks ambient noise well for clearer audio. Call quality is decent thanks to built-in microphones.


The ZZN ZT02 Wireless Earbuds offer auto-pairing when removed from the charging case, eliminating the need to manually pair each time. Bluetooth connectivity is stable during everyday use. On-ear buttons provide playback, call, and volume controls. The earbuds also feature a mono mode to use one earbud independently. Battery life is rated for 6 hours of continuous playback per charge.
 ZZN ZT02 Wireless Earbuds

Battery Life

The charging case provides an additional 24 hours of charge for a total 30 hours of battery life. This is sufficient for a week’s worth of moderate usage before needing to recharge. Charging the case takes about 2 hours via USB-C. Battery levels are displayed on the case LEDs. Quick charge functionality provides 1 hour of playtime from just 10 minutes of charging.

Punchy Sound with Emphasis on Bass

Driven by large 11mm dynamic drivers, the ZZN ZT02 Wireless Earbuds deliver impactful bass as the main highlight of their sound. The large drivers help reproduce thumping low frequencies, making bass the star of the show. Mids sound smooth and natural, while highs have decent clarity but lack some sparkle. Overall, the lively V-shaped sound signature is geared towards pop, hip-hop, EDM and upbeat workout playlists.

Clear Microphone for Calls

Thanks to the MEMS microphone system, call quality on the ZZN ZT02 Wireless Earbuds is impressive. Voices sound clean and natural, with good noise reduction to combat wind. Phone conversations are easy to conduct even in noisier environments, making these suitable for taking calls on the go.

IPX7 Waterproofing

With an IPX7 rating, the ZZN ZT02 Wireless Earbuds can withstand both heavy sweat and being submerged in 1 meter of water for up to 30 minutes. This makes them ideal for intense workouts and use in the rain without liquid damage. Just rinse them off after particularly sweaty sessions.

 ZZN ZT02 Wireless Earbuds

Hassle-Free Controls

On each earbud is a large multi-function button that handles playback, calls, volume and voice assistants. Just single/double/triple click to control music, long press to enable your phone’s default assistant. The tactile buttons are easy to operate by feel while exercising.

 ZZN ZT02 Wireless Earbuds

Use Cases

With their sporty design and sound signature tuned for bass, the ZZN ZT02 Wireless Earbuds are ideal for workouts like:

  • Running and cardio sessions - The flexible earhooks provide a bounce-free fit so the buds stay put mile after mile. Sweatproofing gives peace of mind on long runs.

  • HIIT and CrossFit - Punchy bass motivates you through high intensity training. Buttons allow easy control mid-workout when you don’t want to touch your phone.

  • Weight training - Earhooks keep the ZZN ZT02 Wireless Earbuds stable during strength exercises. Just tap the buttons to change songs between sets.

User Feedback Analysis

ZZN ZT02 Wireless Earbuds have garnered largely positive feedback from customers, who applaud their value-packed features and workout-friendly performance. However, some shortcomings around sound quality and connectivity have also been highlighted. Let’s explore the praise and critique to get a holistic view.

Earhooks Earn High Marks for Security

One resounding upside mentioned again and again is the flexible earhooks. Users enthuse over the incredibly stable and slip-proof fit, with some saying the ZZN ZT02 Wireless Earbuds “stay in place better than any other wireless buds.” The lightweight earhooks are described as “gentle yet grippy”, hugging the contour of ears comfortably without budging during intense training. From boxing to burpees, the clever earhook design eliminates the nuisance of dislodged earbuds.

Bass Pumps Up the Energy

When it comes to audio quality, deep thumping bass takes the spotlight. The sizable 11mm drivers project “high-impact low end” to inject energy into workouts, earning kudos from electronic and hip hop fans. While bass is full-bodied, some find the mids slightly veiled and highs lacking crispness compared to pricier models. Nonetheless, the dynamic sound is deemed more than adequate for the price point.

Battery Life Fits the Bill

In terms of battery performance, most users are satisfied with the advertised 6 hours playback per charge and 30 hours with the case. They report runtimes aligning with the specs, delivering “enough juice for the average gym session or run.” Quick-charging earbuds for 15 minutes also provides around an hour of use. For budget wireless buds, stamina is considered respectable.

Connectivity Could Be Improved

The most common complaint centers around Bluetooth connectivity. While pairing is a breeze, some experience intermittent dropouts when using their ZZN ZT02 Wireless Earbuds outdoors. Staying connected appears tricky past 10 feet from their smartphone. A few also report frustration with “finicky” re-pairing issues. However, this seems unit-specific rather than a systematic flaw.

Verdict: Jack of All Trades Earbuds

For shoppers after versatile wireless earbuds without breaking the bank, the ZZN ZT02 Wireless Earbuds make an enticing choice. While they don’t excel in any specific area, the well-rounded performance and IPX7 rating make them a high value pick for active lifestyles. As long as expectations are set around the budget price tag, these earbuds should deliver on all fronts.

Pros and Cons

- Secure and comfortable fit
- Punchy bass ideal for workouts
- IPX7 rating for sweat/water resistance
- Good battery life
- Affordable price point

- Sound quality not as crisp as premium models
- Bluetooth connectivity can be spotty
- Bulky case not as portable
- Control buttons take some getting used to


With bass-heavy sound, sweatproofing, and a secure fit for just $29.99, the ZZN ZT02 Wireless Earbuds offer excellent value for money. Though not the most refined sounding earbuds, their affordable price and focus on exercise make them a budget-friendly option. For shoppers looking for wireless earbuds on a tight budget, the ZZN ZT02 Wireless Earbuds model punches above its weight.


For the affordable price, the ZZN ZT02 wireless earbuds deliver powerful sound and reliable connectivity. The secure fit and IPX7 waterproofing make them ideal for sports and active lifestyles. While they lack wireless charging and active noise cancellation of premium models, the ZZN ZT02 Wireless Earbuds provide great value overall.


  • Connectivity: Bluetooth 5.0
  • Driver: 11mm dynamic driver
  • Battery: 3 built-in lithium batteries, up to 6 hours playtime, 30 hours with charging case
  • Waterproof rating: IPX7
  • Weight: 6.9 oz
  • Dimensions: 2.9 x 2.6 x 1.6 inches
  • Bluetooth profiles: HSP, HFP, A2DP, AVRCP
  • Number of earbuds: 2

What’s In the Box

The ZZN ZT02 Wireless Earbuds include:

  • Left and right earbuds
  • Charging case
  • S/M/L silicone eartips (1 pair each)
  • Short charging cable (USB-C)
  • User manual

How to Use

  1. Charge the earbuds and case before first use.
  2. Insert eartips onto earbuds for a secure fit.
  3. Remove earbuds from case - they will power on and automatically pair.
  4. On phone, connect to “ZT02” to complete pairing.
  5. Use control buttons to play/pause, skip tracks, adjust volume.
  6. Place back in charging case when not using.
ZZN ZT02 Wireless Earbuds