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Ozlo Sleepbuds 21 / 7
Ozlo

Ozlo Sleepbuds 2

Ozlo's second-generation sleep earbuds are smaller, longer-lasting, and a lot less annoying at 2AM.

Current price · Amazon US
$279
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Price last checked 1d ago

Noise Isolation
7.1/ 10
7.1
0.010.0

A 7.1 puts its noise isolation in the top quarter of wireless earbuds we've measured.

Measured on 129 of the 253 we've cataloged.

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Key specs

Battery Life Earbuds
14 hAbove average
14 h
3 h15 h

above average for wireless earbuds — based on 236 of 253 we've cataloged.

Battery Life With Case
56 hAbove average
56 h
7 h60 h

above average for wireless earbuds — based on 233 of 253 we've cataloged.

IP Rating
IPX4Most common
IPX435%IP5517%IP5415%IPX511%

IPX4 is the most common — on 35% of the 234 wireless earbuds we've cataloged (of 253).

Live translation
NoneMost common
None55%Platform ai32%In-app14%

None is the most common — on 55% of the 22 wireless earbuds we've cataloged (of 253).

Battery

Battery Life Earbuds
14 h
Battery Life With Case
56 h
Charging Method
USB-C
Full Charge Minutes
150 min
Battery Life Wireless
14 h
Fast Charging
Yes

Build

IP Rating
IPX4
Sweat Resistance
No
Water Resistance
Yes

Features

Live translation
None
Companion App
IOS + Android
Control Type
Touch controls
Eq Customization
Presets only
Auto Connect
Yes
Auto Pause
No
Built In Sounds
Yes
Fitness Tracking
No
Mono Mode
No
Sleep Timer
Yes

Connectivity

Bluetooth Version
5.3
Bluetooth Range
10 m
Connection Type
Bluetooth
Headphone Jack
No

Design

Earbud Form Factor
In-ear
Case Dimensions
11 x 17 x 12 mm mm
Color Options
White
Ear Tip Material
Silicone
Ear Tip Sizes Included
0, 1, 2, 3
Form Factor
Low-profile earbuds
Wearing Style
Shallow fit
Wearing Time Max
8 h
Weight
99 g
Weight Per Earbud
1.6 g

Microphone

Count
0
Microphone
No
Wind Noise Reduction
No
Type
Single microphone

Release

Date
2026-07-29
Msrp Usd
279 USD
Year
2026

Sound

Anc Modes
Off
Driver Type
Balanced armature
Adaptive Anc
No
Passive Isolation
71.3 dB

Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.

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Ozlo Sleepbuds 2
Passive isolation (dB) with ANC off — how much ambient noise the fit blocks on its own. Higher on the chart means more attenuation.-1001020304050201001k10k20k

Passive isolation (dB) with ANC off — how much ambient noise the fit blocks on its own. Higher on the chart means more attenuation.

Ozlo Sleepbuds 2: passive isolation, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)Attenuation (dB)
219.4
268.4
337.9
418.6
5210.4
658.8
828.7
1037.6
1306.8
1637.6
2053.9
25911.1
3259.9
41016.7
51612.8
61312.8
77222.6
97216.3
122022.1
154024.4
194028.1
244032.6
307035.9
387032.8
487028.1
613020.0
772027.6
972034.6
1220021.0
1540032.9
1940029.6

SoundGuys review

Read the full review ›
SOUNDGUYS rating
7.6/ 10
Recommended
Adam Birney
Reviewed byAdam BirneyManaging EditorReviewed August 2026
Isolation7.1
Battery life8.4
Comfort & fit9.0
Connectivity5.0
Design8.0
Portability8.0
The verdict

The most comfortable sleep earbuds you can buy, with battery life that lasts a full night. But $279 gets you no ANC and no wireless charging.

What we like
Comfortable
Battery life
Features
What could be better
No ANC
No wireless charging
No multipoint
Price
Read the full SoundGuys review →

Nobody who owns the Ozlo Sleepbuds 2 has written in yet.

Owner notes are not paid for, not solicited from specific owners, and not edited by us. The commission SoundGuys may earn on this page comes from retail links, never from notes.

Own the Ozlo Sleepbuds 2?

Three answers, four quick reads, one sentence nobody tells you before buying. Shown under a pseudonym.

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1 of 1 would buy again

1 owner

Battery in real life — better than expected

— @warm_pulsar_26
$68.37at Amazon
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