TONGVEO 2-in-1 Conference Speakerphone Review: Daisy-Chain Range for Bigger Rooms

The TONGVEO 2-in-1 is a Bluetooth conference speakerphone sold as a matched pair, built so one unit works alone or links to its twin for a bigger room. In the box are two identical speakerphones, a 3.5mm daisy-chain cable, a USB cable, a wireless dongle, and an OTG adapter, according to the manufacturer's listing. That combination lets one purchase cover both a small huddle room and a larger meeting space, once the two units are chained together.

This review covers what the daisy-chain design does well, where the TONGVEO 2-in-1 comes up short, and how it stacks up against the other conference speakerphones selling alongside it right now. Every claim below comes from TONGVEO's own product listing, not third-party testing.

What the TONGVEO 2-in-1 Is: Who Should Buy It

The TONGVEO 2-in-1 is built for organizations that hold meetings in rooms of different sizes and don't want a separate speakerphone for each one. A single unit is rated for meetings of 12 to 15 people. Connect the included cable to the second unit and that capacity grows to roughly 30 people across a 30-to-60-square-meter room, per the listing.

It suits small and mid-size businesses, co-working spaces, and any team that hosts both quick huddles and larger all-hands or client calls in the same office. It is a poor fit for a business that only ever meets in one small, fixed room, since the second unit and cable add cost without adding value there.

Full-duplex audio and a 20-foot mic radius also make a single unit workable for smaller rooms on its own, so a business testing the brand for the first time isn't forced to use both speakerphones from day one.

• Best for: businesses that hold meetings in rooms of different sizes and want one device to cover both
• Also good for: teams that run parallel meetings in two separate rooms, since the units work independently
• Skip it if: you meet in one fixed small room and don't need the second speakerphone or the cable

Audio Performance: What the 4-Mic Array Handles Well

Each TONGVEO speakerphone uses four digital omnidirectional microphones arranged to pick up voices from every direction within a 20-foot, or 6-meter, radius, according to the manufacturer's spec. That range covers a standard conference table without anyone needing to lean toward the device.

The speakerphone runs full-duplex audio, so people on both ends of a call can talk over each other without the audio cutting out, unlike older half-duplex speakerphones that mute one side while the other talks. TONGVEO also applies its own noise-processing software, described in the listing as an AI-based algorithm, to reduce background noise while keeping voices clear, and a 5W built-in speaker handles playback for the room.

Connectivity is broad by design. The speakerphone pairs over Bluetooth, USB, an included wireless dongle, or a 3.5mm jack, works with Windows, Mac OS, iOS, and Android without extra drivers, and is listed as compatible with Zoom, Microsoft Teams, and Webex.

That combination of connection options is aimed squarely at offices with a mix of company laptops, personal phones, and conferencing platforms already in use, rather than a single locked-down device.

The Real Differentiator: Daisy-Chain Pairing for Bigger Rooms

Daisy-chaining two units together is this speakerphone's standout feature, and it is the reason to buy the 2-in-1 kit instead of a single-unit competitor. Running the included 9.8-foot cable between the two speakerphones extends effective pickup from 20 feet to roughly 40 feet, scaling coverage from a 12-to-15-person huddle to a 30-person meeting.

One unit becomes the master, connected to the laptop or meeting hub by USB, Bluetooth, or dongle, while the second acts as a slave extension over the cable. TONGVEO's listing says the master and slave roles can be swapped, so the unit doing the connecting doesn't have to stay fixed. When chaining isn't needed, the two speakerphones work independently, so a team can run one in a small room and the second in a different room at the same time.

In our engagement with HOA and condo boards that run hybrid board meetings across shared clubhouse and common-area rooms, the recurring complaint isn't call quality on a laptop mic. It's board members seated at the far end of an oversized room going unheard by remote attendees. A daisy-chained pair addresses that room-geometry problem directly, instead of asking one microphone array to cover a room it wasn't built for.

Battery Life and Portability for All-Day Meetings

Each TONGVEO speakerphone runs on a built-in 8,000mAh battery rated for 18 hours of talk time, according to the listing. That's enough for a full day of back-to-back meetings on a single charge, whether the unit is running alone or chained to its twin.

The touch-sensitive controls handle calling, hanging up, muting, and volume, and an LED and OLED display show remaining battery power at a glance. Because both units are cordless, the pair can move between conference rooms, huddle spaces, or even a hotel room on a business trip, instead of staying tethered to one desk.

The tradeoff for that portability is that both units need charging ahead of a meeting. A speakerphone with an empty battery can't be plugged in and used mid-call the way a wall-powered device can, so teams that daisy-chain regularly should build charging into their room setup routine rather than treating it as optional.

For a business evaluating whether daisy-chain audio is worth the extra unit, the shared 18-hour rating on both speakerphones means there's no weak link that runs out of charge before the other.

Setup: Connection Options and Package Contents

Setting up the TONGVEO 2-in-1 doesn't require installing drivers. The speakerphone connects over Bluetooth, a USB cable, the included wireless dongle, or a 3.5mm jack, and the box includes an OTG adapter for connecting to mobile devices that lack a full-size USB port.

The package includes both speakerphones, the USB cable, the 3.5mm daisy-chain cable, the wireless dongle, the OTG adapter, and a user manual, so nothing extra needs to be bought to use the daisy-chain feature on day one. TONGVEO's listing also states that technical support questions are answered within 24 hours, which matters for a device with this many connection modes and two units to keep in sync.

That range of options makes the 2-in-1 easier to standardize across a mixed-device office than a speakerphone that only supports one connection type.

Where the TONGVEO 2-in-1 Falls Short

The biggest limitation is that the bigger-room capability depends on a second speakerphone being present and charged. If the paired unit is left behind or its battery has run out, the setup drops back to a single 12-to-15-person unit, and the room the meeting was booked for may be too large for it.

TONGVEO also doesn't publish independent lab results or formal platform certifications for this model, so buyers are relying on the manufacturer's own numbers for range, battery life, and noise reduction rather than a third-party benchmark.

There's also no indication in the listing of a wireless, non-cabled, link between the two units, so businesses that want a completely cable-free bigger-room setup will need to look elsewhere, or accept the one physical cable run this system needs.

• Cabled, not wireless, daisy chain: the two units need the included 3.5mm cable run across the room to link
• TONGVEO is a budget-focused brand, not a certified-hardware name like Yealink for platforms such as Microsoft Teams
• Both units are battery-powered, so both need charging ahead of a meeting rather than staying plugged in permanently
• No companion app is mentioned in the listing for remote management or firmware updates

TONGVEO 2-in-1 vs the Alternatives

Against the EMEET M0 Plus and EMEET M1A, both single-unit speakerphones, the TONGVEO 2-in-1's daisy-chain pairing is the meaningful difference. Those competitors reach a fixed pickup radius and stop there, while the TONGVEO pair can split into two small-room devices or join into one large-room device.

The Anker PowerConf models compete more on connection simplicity and brand reputation than on room-size flexibility, and neither ships with a second unit. The Yealink SP92 line matches the TONGVEO on AI noise reduction and USB, Bluetooth, and dongle connectivity, and it carries Microsoft Teams certification that the TONGVEO listing does not claim, which matters for IT departments that require certified hardware.

For a business buying one speakerphone for a fixed small room, the single-unit competitors are simpler and likely cheaper. For a business that needs coverage to scale with room size, or wants two independent units for two rooms, the TONGVEO 2-in-1 is the more flexible buy. Either way, all of the alternatives below are sold as single units, so the daisy-chain feature itself is not something you can add later; it has to be bought as part of the 2-in-1 kit from the start.

Alternatives worth comparing

If the TONGVEO 2-in-1 Conference Speakerphone is not the right fit, these are the other conference speakerphones ranking alongside it right now.

EMEET M0 Plus Conference Speaker and Microphone, 4 Mics 360° Voice Pickup

#1 in Conference Speakerphones

Read the review →Check price →

EMEET M1A USB Speakerphone, Built-in Mics, 360° Voice Pickup, Plug&Play

#1 in Conference Speakerphones

Read the review →Check price →

Anker PowerConf Speakerphone, Zoom Certified Conference Speaker with 6 Mics

#2 in Conference Speakerphones

Read the review →Check price →