Headset · Bluetooth earbuds

DH401B open-ear Bluetooth earbuds — 13.6 g with a charging case

Open-ear Bluetooth earbuds weighing 13.6 g, with a hook design, dual-microphone AI noise reduction, Bluetooth 5.4 multipoint and a portable charging case that carries a visible battery display.

Open-ear (OWS) hook design, weighing 13.6 g
Bluetooth 5.4 with multipoint, switching between phone and PC
Dual-microphone AI noise reduction
Portable charging case with a visible battery display
The charging case adds up to 36 hours of music playback or 23 hours of talk time
Compatible with the IP desk phones and portable handsets in this range

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DH401B open-ear Bluetooth earbuds with their charging case

Open-ear, for a full working day

The DH401B is an OWS (open-ear) earbud, so the ear canal stays open while the call runs. The hook design carries the 13.6 g body, and the speaker is stated as high quality.

Open-ear (OWS) hook design
Weighs 13.6 g
High-quality speaker
Portable charging case with a visible battery display

Two devices at once

Bluetooth 5.4 with multipoint lets the earbuds hold a phone and a PC at the same time and switch between them without re-pairing — the usual pattern for a desk that runs a handset and a softphone side by side.

Bluetooth 5.4 with multipoint
Seamless switching between phone and PC
Dual-microphone AI noise reduction for the microphone side
Compatible with the IP desk phones and portable handsets in this range

Battery and what is not stated

The charging case provides an extra 36 hours of music playback or 23 hours of talk time
Earbud-only battery life — not stated separately in the source materials
Dimensions and weight of the case — not stated
Colour options — not stated

The two battery figures are stated together with the charging case, so we publish them that way rather than as a figure for the earbuds alone.

Where it fits on site

A desk with a phone and a PC

Multipoint Bluetooth 5.4 holds both devices, so a call can move between the handset and the computer without re-pairing.

Long shifts and mobile staff

The charging case is stated to add 36 hours of music playback or 23 hours of talk time.

Open-plan offices

The open-ear design leaves the ear canal clear while dual microphones apply AI noise reduction.

Specifications

Audio & calling

Form	Open-ear (OWS) hook design
Weight	13.6 g
Microphone	Dual-mic AI noise reduction
Speaker	High quality

Wireless

Bluetooth	5.4 with multipoint
Device switching	Between phone and PC
Compatibility	IP desk phones and portable handsets in this range

Power & not stated

Charging case	Portable, with a visible battery display
Music playback	Up to 36 hours extra with the charging case
Talk time	Up to 23 hours extra with the charging case
Earbud-only battery life	Not stated in the source materials
Dimensions and colour	Not stated in the source materials

iSpecifications are taken from the product documentation supplied with the range. The battery figures are those stated with the charging case; a separate earbud-only figure, dimensions and colour are not stated.

Choosing between options

Model	Specifications
CA600	Dual 11-inch touch screens · 12-microphone 360° array · Dual 10W speakers · 4K wireless casting
CA400	3-piece kit · 4K wireless casting · 8-array microphones · 118.5° wide angle
CM60	1080p video · USB connection · Adjustable privacy cover · Optional on the X7A
DH401B	Weighs 13.6 g · Bluetooth 5.4 multipoint · Dual-mic AI noise reduction · +36 h music from the case
PN1	Network + power over 2-wire · Up to 1600 m network run · AC 100–240 V supply · Retrofit converter
GA10	2 SIP lines · 1 FXS (RJ11) port · Micro USB DC 5V/1A · 10/100 Mbps port

Compatibility boundaries

This model uses standard SIP and the interfaces listed in the specification table. Confirm the PBX, SIP provider or platform against those interface notes before the order; where the documentation does not state a value, the table records it as not stated rather than estimating. PoE, analog port variants, power options and card compatibility are fixed at order time.

Handover, spares and support

Extension plan, provisioning and interface language can be prepared before dispatch. Remote support continues after handover. Spare-part, warranty and service terms are confirmed in the quotation for the models and quantity ordered, so they are not printed as a single figure here.

Where it sits in the system

SIP desk phones

The desk phones these earbuds are documented as compatible with.

Wireless & DECT

The portable handsets they are also documented with.

Conference range

Compare against the room audio in the CA400 kit and the CA600 terminal.

Frequently asked questions

Can the DH401B connect to two devices at once?

Yes. Bluetooth 5.4 with multipoint is stated, with seamless switching between phone and PC, so a desk that runs a handset and a computer does not have to re-pair the earbuds.

How long does the battery last?

With the charging case, an extra 36 hours of music playback or 23 hours of talk time is stated. A separate earbud-only figure is not given in the source materials, so we do not publish one.

Which phones are they compatible with?

The documentation states compatibility with the IP desk phones and portable handsets supplied in this range. If you tell us which model your team uses, we will confirm it on the quotation.

Is it wired or wireless?

Wireless — Bluetooth, with a portable charging case that shows the battery level.

Standards referenced

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Planning an IP telephony project?

Send us the site type, the number of extensions or rooms and the areas to cover — we will come back with a configuration and quotation.