JBL Endurance Peak II True Wireless Headphones Review

Tested using Methodology v1.4
Reviewed Dec 21, 2020 at 10:53 am
JBL Endurance Peak II True Wireless Picture
7.1
Mixed Usage
6.8
Neutral Sound
7.8
Commute/Travel
8.1
Sports/Fitness
6.9
Office
5.2
Wireless Gaming
5.1
Wired Gaming
6.7
Phone Calls
Type In-ear
Enclosure Closed-Back
Wireless Truly Wireless
Noise Cancelling No
Mic Yes
Transducer Dynamic

The JBL Endurance Peak II True Wireless are sports-oriented headphones with a distinctive ear-hook design that helps them stay on your ears during your workouts. Their bass-heavy sound profile adds an extra thump and punch to your favorite music. While they don't have an ANC feature, they do an amazing job passively isolating against background noises, so you don't hear chatter from people working out around you in the gym. Unfortunately, they may not be comfortable enough to wear for long listening sessions, especially if you have smaller ears. However, they're very portable, and their charging case makes it easy to recharge when you're on-the-go.

Our Verdict

7.1 Mixed Usage

The JBL Endurance Peak II are decent for mixed usage. These sports-oriented in-ears have a very stable fit thanks to their ear-hook design, so they shouldn't move around during your workouts. Also, they can passively isolate against background noises typically found in a noisy office or during your commute. While their bass-heavy sound profile can help you stay motivated at the gym, it may be overwhelming for fans of neutral sound. Also, their latency with Bluetooth-enabled PCs is probably too high for gaming.

Pros
  • Amazing noise isolation.
  • Well-built, portable design.
  • Impressive stability.
Cons
  • No sound customization features.
  • Sub-par noise handling.
  • May feel fatiguing after long listening sessions.
6.8 Neutral Sound

The JBL Endurance Peak II are reasonable for neutral sound. Their balanced, neutral mid and treble ranges can reproduce vocals and lead instruments clearly and accurately. However, the overemphasis in the bass range may be overwhelming for some listeners. Unfortunately, there are no sound customization features available.

Pros
  • Amazing frequency response consistency.
Cons
  • No sound customization features.
7.8 Commute/Travel

The JBL Endurance Peak II are very good for commute and travel. Their portable design makes it easy to bring them on-the-go, and they can passively isolate against lots of background noise, including the sound of bus and plane engines or chatter from other commuters. While their 6.6-hour continuous battery life may not last through long international flights, their portable charging case offers around four extra charges. Unfortunately, they may feel uncomfortable in your ear after long listening sessions.

Pros
  • Amazing noise isolation.
  • Well-built, portable design.
Cons
  • May feel fatiguing after long listening sessions.
8.1 Sports/Fitness

The JBL Endurance Peak II are impressive for sports and fitness. These lightweight sports-oriented in-ears have a very stable fit thanks to their ear-hook design, so they shouldn't fall out of your ears during your workout. They also have an IPX7 rating for water resistance, though we don't test for this. They're well-built and easy to bring on-the-go, too. However, they may start to feel uncomfortable after long listening sessions.

Pros
  • Well-built, portable design.
  • Impressive stability.
Cons
  • May feel fatiguing after long listening sessions.
6.9 Office

The JBL Endurance Peak II are fair for office use. They don't leak a lot of noise, and their amazing noise isolation can block out the sound of coworkers chatting nearby. Their 6.6-hour continuous battery life may not last through your 9-5, but their portable charging case has a couple of extra charges to get you through your day. Unfortunately, they can start to feel fatiguing in your ears after long listening sessions.

Pros
  • Amazing noise isolation.
Cons
  • May feel fatiguing after long listening sessions.
5.2 Wireless Gaming

The JBL Endurance Peak II aren't compatible with Xbox One or PS4 consoles. You can pair them with Bluetooth-enabled PCs, but their latency is likely too high to be suitable for gaming.

5.1 Wired Gaming

The JBL Endurance Peak II can't be used wired, so they aren't suitable for wired gaming.

6.7 Phone Calls

The JBL Endurance Peak II are adequate for phone calls. Their integrated microphone can transmit your voice clearly and intelligibly, though it may also sound a bit thin. They can also block out a lot of background noises so you can focus on your call. However, due to their disappointing noise handling performance, they're better suited for making phone calls in quieter environments.

Pros
  • Amazing noise isolation.
Cons
  • Sub-par noise handling.
  • 7.1 Mixed Usage
  • 6.8 Neutral Sound
  • 7.8 Commute/Travel
  • 8.1 Sports/Fitness
  • 6.9 Office
  • 5.2 Wireless Gaming
  • 5.1 Wired Gaming
  • 6.7 Phone Calls

Test Results

perceptual testing image
Design
Design
Style

The JBL Endurance Peak II have a distinct sports-oriented design that's similar to the JBL Endurance Peak Truly Wireless. They have dense, rubberized earbuds and thick ear hooks for stability. You can get them in 'Black', 'White', 'Blue', and 'Coral'.

6.5
Design
Comfort
Weight 0.06 lbs
Clamping Force
0 lbs

The JBL Endurance Peak II are reasonably comfortable. They don't go too deep into your ear, which is nice. Also, the bendable wire on the ear hook lets you adjust the headphone based on your preferences. However, they're a bit bulky, and they can feel uncomfortable after long periods of use. Also, since you can automatically turn them off by moving the ear hook to touch the back of the headphones, listeners with small ears may accidentally turn off the headphones when trying to tighten their fit, which is inconvenient. If you're looking for more comfortable truly wireless headphones, try the JBL Live Pro+ TWS True Wireless.

6.4
Design
Controls
OS Compatibility
Not OS specific
Ease Of Use Subpar
Feedback Okay
Call/Music Control Yes
Volume Control Yes
Microphone Control Mute/Unmute
Channel Mixing
No
Noise Cancelling Control No
Talk-Through
No
Additional Controls Voice Assistant

These headphones have passable controls. You can tap either bud to answer/end a call, and double-tap them to decline a call. Tapping the left bud once skips ahead to the next track while tapping twice skips backward to the previous track. Tap and hold either bud for two seconds to mute/unmute the microphone. You can slide up on the right bud to turn the volume up and down to turn the volume down. Tap the right bud once to play/pause, and double-tap to activate the voice assistant. However, the touch-sensitive controls don't have any audible feedback, and the sensitive surface is very small. As a result, when attempting to adjust the volume, sometimes the buds play/pause music instead.

9.2
Design
Portability
L 1.9 "
W 1.5 "
H 1.1 "
Volume 3.1 Cu. Inches
Transmitter Required No

The JBL Endurance Peak II are remarkably portable. They're small and lightweight, and they should fit easily into your pocket or bag. There's also a portable charging case to help protect them when you're on-the-go.

7.0
Design
Case
Type Hard case
L 3.6 "
W 2.3 "
H 1.4 "
Volume 11.6 Cu. Inches

The case is decent. It's mostly made of plastic, but it doesn't feel quite as solid and durable as the materials used for the JBL Endurance Peak Truly Wireless' case. There's an LED light to show the battery level, and a locking mechanism to keep the case closed.

7.5
Design
Build Quality

The JBL Endurance Peak II are well-built. They're mostly made of plastic, and the ear hooks are made from a hard, malleable silicone material that feels solid and durable. They also have an IPX7 rating for water resistance, though we don't test for this.

8.0
Design
Stability

The JBL Endurance Peak II are impressively stable. They have a dual-locking mechanism to keep them from falling off your ears. You can wear them during your workouts, and they should stay in place.

Design
Headshots 1
Design
Headshots 2
Design
Top
Design
In The Box

  • JBL Endurance Peak II headphones
  • 3x earbud tips
  • USB-C charging cable
  • Charging case
  • Manual

Sound
Sound
Sound Profile
Bass Amount
3.98 db
Treble Amount
-1.66 db

The JBL Endurance Peak II have a bass-heavy sound profile. The extra thump and punch in the bass range is suitable for listening to bass-heavy music genres like hip-hop and EDM. The rest of the range is quite flat and balanced, so vocals and lead instruments are clear and present.

8.8
Sound
Frequency Response Consistency
Avg. Std. Deviation
0.24 dB

These headphones have excellent frequency response consistency. Once you get a proper fit and seal, you should be able to get consistent bass and treble delivery each time you use them.

Sound
Raw Frequency Response
6.7
Sound
Bass Accuracy
Std. Err.
4.61 dB
Low-Frequency Extension
10 Hz
Low-Bass
7.17 dB
Mid-Bass
5.04 dB
High-Bass
2.51 dB

These headphones have fair bass accuracy. The entire range is overemphasized, so audio has an extra thump and punch suitable for bass-heavy genres like EDM.

9.1
Sound
Mid Accuracy
Std. Err.
1.25 dB
Low-Mid
0.01 dB
Mid-Mid
-0.87 dB
High-Mid
1.59 dB

These headphones have superb mid accuracy. The entire range is flat and balanced, so vocals and lead instruments are clear and present in the mix.

7.9
Sound
Treble Accuracy
Std. Err.
2.76 dB
Low-Treble
1.53 dB
Mid-Treble
1.09 dB
High-Treble
-9.55 dB

The JBL Endurance Peak II have very good treble accuracy. Vocals and lead instruments are clear and detailed. However, the overemphasized mid-treble can make sibilants like cymbals piercing or painful.

7.6
Sound
Peaks/Dips
Peaks
1.7 db
Dips
0.82 db

The JBL Endurance Peak II have good peaks and dips performance. The slight dip across the low-mid and mid-mid ranges nudges vocals and lead instruments towards the back of the mix. The slight peaks in the high-mid and low-treble can make those same instruments a little honky or bright. The peak in the mid-treble makes sibilants sound piercing.

8.5
Sound
Imaging
Weighted Group Delay
0.37
Weighted Amplitude Mismatch
0.75
Weighted Frequency Mismatch
1.04
Weighted Phase Mismatch
7.67

These headphones have excellent imaging. Their weighted group delay falls below the audibility threshold, resulting in tight bass and transparent treble. Also, the L/R drivers of our unit are well-matched in amplitude, phase, and frequency response. As a result, objects like voices and instruments are accurately placed and localized within the stereo image. However, these results are only valid for our test unit, so your experience may vary.

0.3
Sound
Passive Soundstage
PRTF Accuracy (Std. Dev.)
N/A
PRTF Size (Avg.)
N/A
PRTF Distance
N/A
Openness
1.5
Acoustic Space Excitation
0

Like most in-ear headphones, they have a terrible passive soundstage performance. By design, they bypass the outer ear, which is one of the key components in creating a speaker-like soundstage. Instead, the soundstage is perceived as small and located within the listener's head. Their closed-back design means that their soundstage doesn't feel as open as that of open-back headphones like the Apple AirPods 2 Truly Wireless 2019.

0
Sound
Virtual Soundstage
Head Modeling
No
Speaker Modeling
No
Room Ambience
No
Head Tracking
No
Virtual Surround
No App

These headphones don't have any virtual soundstage features.

8.5
Sound
Weighted Harmonic Distortion
WHD @ 90
0.136
WHD @ 100
0.075

These headphones have an amazing weighted harmonic distortion performance. Even at higher volumes, audio reproduction is clean and pure.

Sound
Test Settings
Firmware
Unknown
Power
On
Connection
Bluetooth 5.0
Codec
SBC, 16-bit, 48kHz
EQ
No EQ
ANC
No ANC
Tip/Pad
Silicone (small)
Microphone
Integrated

These are the settings we used to test these headphones. Our results are only valid when using these settings.

Isolation
8.5
Isolation
Noise Isolation
Isolation Audio
Overall Attenuation
-24.59 dB
Bass
-15.38 dB
Mid
-18.25 dB
Treble
-40.09 dB

The JBL Endurance Peak II have amazing noise isolation. They don't have an ANC feature, but they can passively isolate against a lot of background noise. They should be able to block out some bass-heavy background noises like bus and plane engines, as well as higher-frequency sounds like people talking nearby and the hum of an AC unit.

10
Isolation
Leakage
Leakage Audio
Overall Leakage @ 1ft
19.85 dB

These headphones have an outstanding leakage performance. Escaping audio sounds very thin, and it isn't very loud. You can listen to your audio at loud volumes without really bothering those around you.

Microphone
Microphone
Microphone Style
Integrated
Yes
In-Line
No
Boom
No
Detachable Boom
No

The JBL Endurance Peak II have an integrated microphone.

7.0
Microphone
Recording Quality
Recorded Speech
LFE
289.23 Hz
FR Std. Dev.
3.15 dB
HFE
5194.47 Hz
Weighted THD
0.3
Gain
-8.3 dB

The microphone's recording quality is satisfactory. Your voice doesn't sound very deep or full-bodied, but whoever's on the other end of the line should be able to understand you.

5.9
Microphone
Noise Handling
Speech + Pink Noise
Speech + Subway Noise
SpNR
9.41 dB

The microphone has a middling noise handling performance. It struggles to separate your voice from background noise, even if you're calling from a moderately noisy environment like a busy street.

Active Features
7.3
Active Features
Battery
Battery Type
Rechargable
Continuous Battery Life
6.6 hrs
Additional Charges
4.0
Total Battery Life
33.0 hrs
Charge Time
1.6 hrs
Power-Saving Feature
Auto-Off Timer
Audio While Charging
Yes
Passive Playback
No
Charging Port USB-C

The JBL Endurance Peak II have a decent battery performance. They only last 6.6 hours off of a single charge, which may not last through your 9-5 workday. Fortunately, they have an auto-off timer to help conserve battery life, and you can automatically turn them off by moving the ear hook to touch the back of the headphone. Also, you can listen to audio using one earbud while the other charges, which is convenient.

0
Active Features
App Support
App Name No App
iOS No
Android No
macOS No
Windows No
Equalizer
No
ANC Control
No
Mic Control No
Room Effects
No
Playback Control
No
Button Mapping No
Surround Support
No

These headphones don't have a companion app.

Connectivity
6.9
Connectivity
Bluetooth
Bluetooth Version
5.0
Multi-Device Pairing
No
NFC Pairing
No
Line Of Sight Range
305 ft
PC Latency (SBC)
297 ms
PC Latency (aptX)
N/A
PC Latency (aptX HD)
N/A
PC Latency (aptX-LL)
N/A
iOS Latency
224 ms
Android Latency
204 ms

The JBL Endurance Peak II have reasonable Bluetooth connectivity. They don't support NFC or multi-device pairing, which can be disappointing if you switch your audio source often. Their latency is likely too high to be suitable for watching videos or gaming. However, some apps compensate for latency, so your real-world experience may vary.

0
Connectivity
Non-Bluetooth Wireless
Non-BT Line Of Sight Range
N/A
Non-BT Latency
N/A

These headphones are Bluetooth-only.

0
Connectivity
Wired
Analog Audio
No
USB Audio
No
Detachable No
Length N/A
Connection No Wired Option
Analog/USB Audio Latency
N/A

These Bluetooth-only headphones can't be used with a wired connection. They come with a USB-C cable for charging their case.

Connectivity
PC / PS4 Compatibility
PC/PS4 Analog
No
PC/PS4 Wired USB
No
PC/PS4 Non-BT Wireless
No

These headphones are compatible with Bluetooth-enabled PCs; however, you can't use them with PS4 consoles.

Connectivity
Xbox One Compatibility
Xbox One Analog
No
Xbox One Wired USB
No
Xbox One Non-BT Wireless
No

These headphones aren't compatible with Xbox One.

2.2
Connectivity
Base/Dock
Type
Charging Case
USB Input
No
Line In
No
Line Out
No
Optical Input
No
RCA Input
No
Dock Charging
Yes
Power Supply
USB-C

The JBL Endurance Peak II come with a portable charging case that charges via USB-C.

Differences Between Sizes And Variants

The JBL Endurance Peak II come in several different color variants, including 'Black', 'White', 'Blue', and 'Coral'. We tested the 'Black' variant, and you can see the label for our model here. We expect the other color variants to perform similarly.

If you come across another version, let us know in the discussions so we can update our review.

Compared To Other Headphones

The JBL Endurance Peak II are great truly wireless headphones for sports and fitness. Thanks to their ear-hook design, they have a more stable fit than other truly wireless in-ears. They're the next generation of the JBL Endurance Peak Truly Wireless, and their overall performances are very similar, but they have a better noise isolation performance, a longer continuous battery life, and a better microphone recording quality. However, their bass-heavy sound profile isn't ideal for all listeners, and they don't have any sound customization options. See also our recommendations for the best headphones for running and working out, the best wireless earbuds for running, and the best wireless headphones.

Beats Powerbeats Pro Truly Wireless

The Beats Powerbeats Pro Truly Wireless are somewhat better headphones for sports and fitness than the JBL Endurance Peak II True Wireless. The Beats are more comfortable, their continuous battery life is longer, and they have a more neutral sound profile. However, the JBL have a better noise isolation performance, and they leak less sound. Some listeners may also prefer the JBL's bass-heavy sound profile.

JBL Endurance Peak Truly Wireless

The JBL Endurance Peak Truly Wireless and the JBL Endurance Peak II True Wireless are very similarly-performing headphones, but the newest edition has a few improvements. The Peak II have a better noise isolation performance, a longer continuous battery life, and a better microphone recording quality. Their sound profile is a bit more bass-heavy, which some listeners may prefer. However, the Peak have a better charging case.

Jaybird Vista Truly Wireless

The Jaybird Vista Truly Wireless are better headphones for sports and fitness than the JBL Endurance Peak II True Wireless. The Jaybird are better-built and more comfortable. Their default sound profile is more neutral, and they have lots of sound customization options thanks to their parametric EQ and presets. However, the JBL have better noise isolation and they leak less sound.

Jabra Elite Active 75t Truly Wireless

The Jabra Elite Active 75t Truly Wireless and the JBL Endurance Peak II True Wireless are both great sports headphones, and depending on your listening habits, you may prefer one over the other. The Jabra are better-built and more comfortable. Also, their graphic EQ and presets offer lots of sound customization options. However, the JBL have a more stable fit thanks to their ear-hook design, and they have a better noise isolation performance.