Flex Open Earbuds White S3

What to know

Each earbud lasts 7 hours on a single charge with 21 total hours across the case.

Quick charge gives you 1 hour of playback from 10 minutes of charging.

The case charges via USB-C in under 2 hours.

Standby time exceeds 60 hours.

Bluetooth 5.4 with SBC and AAC codecs.

Both Google Fast Pair and Microsoft Swift Pair supported for instant pairing on Android and Windows devices.

Multipoint connects to two devices simultaneously.

Support protocols: HSP/HFP/A2DP/AVRCP.

Compatible with iOS and Android, including Siri and Google Assistant.

IP55 rated for dust and water resistance.

The JLab app adds custom EQ, control remapping, Music and Movie modes, OTA firmware updates, safe hearing tools, and My JLab device management.

Includes Flex Open earbuds and a JLab 2-year limited warranty.

Specifications

Audio

Driver: 12mm dynamic

Frequency response: 20-20,000 Hz

Impedance: 12 ohms

EQ3 presets: Signature, Bass Boost, Balanced

Microphone

Total mics: 4 x MEMS

Noise canceling: 2-mic ENC

Sensitivity: -38 dB ±1 dB

Connectivity

Bluetooth: 5.4

Codecs: SBC, AAC

Range: 30+ ft

Support protocols: HSP/HFP/A2DP/AVRCP

Multipoint: Yes (2 devices)

Google Fast Pair: Yes

Microsoft Swift Pair: Yes

iOS compatible: Yes

Android compatible: Yes

Siri: Yes

Google Assistant: Yes

Battery

Per earbud: 7 hours

Total playtime: 21 hours

Standby: 60+ hours

Quick charge: 10 min = 1 hour

Earbud battery: 70 mAh 3.7V LiPo

Earbud charge time: <2 hours

Case battery: 400 mAh 3.7V LiPo

Case charge time: <2 hours

Charge port: USB-C

Input power: DC 5V, 1A

Fit and comfort

Fit style: Open-ear clip-on cuff

IP rating: IP55 (earbuds)

Features

Controls: Touch

Voice assistant: Siri, Google Assistant

Movie Mode latency: <200ms

Music latency: >200ms

App (JLab App)

Custom EQ: Yes

Custom controls: Yes

Music / Movie Mode: Yes

OTA updates: Yes

Safe hearing: Yes

My JLab: Yes

Dimensions - earbuds

Height: 1.07 in

Length: 0.72 in

Width: 1.20 in

Total weight: 12 g

Dimensions - case

Height: 1.75 in

Length: 2.75 in

Width: 1.04 in

Weight: 36.8 g

In the box

Flex Open earbuds · JLab 2-year limited warranty

JLab Flex Open in White are open-ear true wireless earbuds designed for listeners who want wireless audio without sealing the ear canal.

The clip-on cuff design wraps around the outer ear with a flexible fit, leaving the ear canal completely open so ambient sound passes through naturally while you listen.

A lightweight option for everyday use, working from home, outdoor activities, or anyone who finds in-ear canal earbuds uncomfortable during long wear sessions.

The 12mm dynamic driver offers full-range sound from an open-ear form factor.

EQ3 Sound gives you three preset listening modes: Signature, Bass Boost, and Balanced.

Four MEMS microphones with 2-mic ENC handle call clarity.

Touch controls for playback and calls.

Movie Mode latency under 200ms for synced video.