JazzTel Rombo — a stylish speakerphone with 8 microphones
Maxim Liadov
JazzTel products are designed for business, focusing on telephony and audio and video conferencing. The Rombo is the latest addition to the company's speakerphone range. It combines compact dimensions, a stylish appearance, and the wide feature set expected of a top model. There is an array of 8 microphones, a two-way loudspeaker system, long battery life, wireless linking with a second unit, and even a supplied wireless USB adapter. The JazzTel Rombo is intended for small and medium-sized meeting rooms. Its compact size and light weight also make it easy to carry or use as a wireless speaker.
The speakerphone comes in a very strong cardboard box. Its simple design suggests a serious approach to the product. The choice of materials also shows an effort to reduce environmental impact, if that matters to you.
An insert holds the speakerphone securely inside the box. The USB dongle with its built-in wireless adapter allows quick connection to any PC or hardware video conferencing system. Everything else is in a cardboard compartment underneath.
For wired use, the package includes a 1.5-meter USB cable with USB Type-C connectors and an adapter for a standard USB 2.0 connection. The printed quick guide describes a useful extra control: pressing all the touch buttons with the palm quickly mutes the loudspeaker. Overall, the accessory package is very good. We would only add a carrying and storage case for the speakerphone and accessories.
The Rombo looks very attractive. In our opinion, it is the manufacturer's best-looking speakerphone. The drivers are covered with fabric over a protective grille. Touch controls are easy to understand. The speakerphone has enough weight and a rubber base to stand firmly without sliding. Everything is made to a standard comparable with leading global brands.
JazzTel Rombo specifications
| Microphone | |
| Voice pickup range | 6 meters |
| Microphone | 8-element microphone array |
| Frequency range | 90 Hz–16 kHz |
| Technologies | AI noise reduction, echo cancellation, voice direction tracking (AI AEC, ANC, VAD) |
| Operating systems | Windows 7/8.1/10/11, Mac OSX, Chrome OS, Android, Chrome OS |
| Loudspeaker | |
| Drivers | 0.75-inch tweeter, 1.75-inch midrange driver |
| Power | 3 W HF + 5 W LF |
| Operating frequency range | 120 Hz–20 kHz |
| Inputs, outputs, buttons, indicators | |
| Wired connection | USB Type-C |
| Linking multiple units | Yes, wireless TWS mode |
| Bluetooth | Version 5.3 |
| Buttons | Power, Answer/End, Microphone mute, Bluetooth, Volume+, Volume- |
| Indicators | Power, Volume, Bluetooth, Microphone, TWS |
| Physical specifications | |
| Dimensions (diameter × height) | 126 mm × 34 mm |
| Weight | 400 g |
| Color | Dark gray |
| Battery | |
| Capacity | 3.7 V/4400 mAh |
| Operating time | 13 hours for speech, 8 hours for music |
The 8 microphones are a clear highlight, picking up sound from every direction. All the necessary processing is available: voice direction tracking, noise reduction, and echo cancellation to prevent acoustic feedback. This new model uses artificial intelligence to identify sounds other than the human voice and remove them completely.
Support for the modern Bluetooth 5.3 standard ensures compatibility with current equipment. A wired USB connection works with any operating system. One professional feature is linking a second unit to double the conversation coverage area.
The manufacturer's illustration clearly shows the internal design, including two drivers and the array of 8 microphones.
The buttons are easy to see and respond reliably. Each press produces a quiet beep. Mode changes are announced by voice, like on a smart speaker. A blue illuminated bar with several segments shows volume.
The standard mute function turns the microphone off and changes the indicator from green to red. The panel also has buttons for power, Bluetooth, and linked operation of two speakerphones in True Wireless Stereo (TWS) mode. We had no problems pairing the speakerphone with a smartphone over Bluetooth.
Our wireless communication tests showed excellent performance from the JazzTel Rombo. Call quality remained very high even when the speaker moved around the room several meters from the microphone array. All processing worked correctly: unwanted sounds were removed effectively, with no sign of acoustic echo. The speakerphone itself sounded balanced. The remote participant's voice was pleasant, without audible distortion or artifacts. Even a very expensive smartphone in speakerphone mode cannot match this performance. The Rombo also provides enough volume to replace laptop speakers during presentations.
With a wired USB connection, the operating system detects a JazzTel Rombo Audio device, available in all applications. This is a standard speakerphone function, but we checked it too.
The supplied USB dongle automatically finds the powered-on speakerphone. Without setup, it appears in applications such as Microsoft Teams as JazzTel Rombo Dongle. This accessory is especially useful with a hardware video conferencing system. Such dongles are often sold separately, so it is good to have one included.
No cables are needed to add a second JazzTel Rombo. Hold the pairing button marked with two circles. After a couple of seconds, a voice announces that the connection is complete. TWS mode doubles microphone coverage, allowing the pair to serve a medium-sized meeting room. All controls are linked, so either speakerphone can control the system. This mode can also increase playback volume for music or video. Interestingly, playback changes from mono to stereo.
Conclusions
The JazzTel Rombo left a positive impression. It fits well into an office or home, includes a USB dongle, and offers a two-way loudspeaker system with good tonal quality. It works well in different applications and provides clear speech without making users raise their voices. Controls are easy to understand and battery life is long. Coverage can be extended by adding a second speakerphone or buying the JazzTel Rombo Duo package. The price is reasonable and competitive.
Note. This is an adapted machine translation into English. It follows the “In simple terms” approach. Read the original article at https://prosound.ixbt.com/microphones/jazztel-rombo.shtml.