The Jabra Speak2 75 UC with Link 390C delivers identical audio performance to the 2775-419 variant — super-wideband audio up to 16,000 Hz, four beamforming MEMS microphones with 72 dB SNR, and 88 dBspl speaker output — with the difference being the included Bluetooth adapter. The Link 390C uses USB-C, making this variant the correct choice for laptops and docking stations that have moved to USB-C only.
The dedicated dongle approach provides a more stable and consistent Bluetooth connection than relying on a laptop’s built-in Bluetooth, reducing connection issues in high-density wireless environments. Voice Level Normalisation applies bidirectionally, reverberation reduction handles reflective meeting spaces, and the 2.5m microphone pickup range comfortably covers groups of up to six in a small meeting room.
With 32 hours of wireless battery and IP64 protection, the Speak2 75 UC with Link 390C suits professionals on current-generation hardware who need a premium portable speakerphone that works reliably across office, home, and travel environments.
Premium audio for USB-C laptop users
The Speak2 75 UC with Link 390C is the correct variant for current-generation laptops that have transitioned to USB-C only, providing the same premium audio performance as the USB-A variant without adapters.
- Link 390C USB-C Bluetooth adapter — dedicated USB-C dongle for stable wireless connection on modern laptops with USB-C only ports.
- Super-wideband audio up to 16,000 Hz — more natural-sounding speech than standard wideband on supported UC platforms.
- 4 beamforming MEMS microphones, 72 dB SNR — precise directional pickup with 2.5m range and industry-leading noise rejection.
- 65mm speaker, 88 dBspl output — larger driver and higher output for fuller room coverage than Speak2 40/55.
- Bidirectional Voice Level Normalisation — balances incoming and outgoing audio for consistent call levels across all participants.
- 32-hour wireless battery — covers full-day and multi-day use without recharging between meetings.
Full duplex for uninterrupted calls
True full duplex allows both parties to speak simultaneously — no cutting out, no artificial pausing. Conversations flow naturally regardless of how many people are participating.
Beamforming mics with precision noise rejection
Four beamforming MEMS microphones with 72 dB SNR focus directionally on voices while suppressing off-axis background sounds — effective at distances up to 2.5m from the device.
Microphone Quality Indicator
The LED Microphone Quality Indicator shows real-time pickup strength before and during calls, so participants know immediately if they are positioned within optimal range.
Stable wireless via dedicated USB-C dongle
The Link 390C provides a dedicated Bluetooth connection that bypasses the laptop’s built-in Bluetooth, delivering a more stable and consistent wireless experience in environments with wireless congestion.
IP64-rated for daily professional use
IP64 protection against dust and water splashes, combined with reverberation reduction for reflective meeting spaces, makes the Speak2 75 suitable for the demands of frequent transport and varied environments.
32-hour wireless battery
Thirty-two hours of wireless operation covers multiple full working days, back-to-back meetings, and extended travel without needing to recharge between sessions.
Sustainable materials and packaging
The Speak2 75 incorporates recycled materials in packaging and components as part of Jabra’s sustainability programme, supporting procurement teams with environmental requirements.
| Specification | Value | What it means for you |
|---|---|---|
| Ideal for room sizes | Up to 4.5m x 4.5m | Confirms the maximum room footprint this device covers without additional audio expansion. |
| Number of microphones | 4 | More microphones improves directional pickup and coverage across the table. |
| Microphone type | Digital MEMS | Digital MEMS microphones deliver consistent accuracy and better noise rejection than analogue types. |
| Microphone frequency range | 150Hz – 14000Hz | Wider range captures more of the voice spectrum — speech sounds more natural to the far end. |
| Microphone pick up range | Up to 2.5m | Maximum distance a speaker can sit from the device and still be clearly picked up. |
| Full Duplex | Yes | Both sides can speak simultaneously without cutting each other off — essential for natural conversation. |
| Signal-to-noise ratio (SNR) | 72 dB | Higher SNR means cleaner audio. 70 dB+ is professional grade. |
| Speaker size | 65mm | Larger driver delivers fuller, richer sound — important for filling a small meeting room. |
| Peak audio output | 88 dBspl @ 0.5m | Maximum volume before distortion — relevant for larger or noisier rooms. |
| Speaker bandwidth (music mode) | 80Hz – 20000Hz | Full frequency range for media playback. |
| Speaker bandwidth (speak mode) | 150Hz – 14000Hz | Optimised frequency range for speech clarity on calls. |
| Acoustic echo cancellation (AEC) | Yes | Prevents the far end from hearing their own voice echoed back. |
| Reverberation reduction | Yes | Reduces room echo for clear speech in hard-surfaced meeting spaces. |
| Voice Level Normalization (Automatic Gain Control, AGC) | Yes (for incoming and outgoing audio) | Automatically balances loud and quiet voices for consistent call audio. |
| Super-wideband (SWB) **** | Up to 16000 Hz | |
| Noise reduction on calls | Yes | Filters background sounds so the far end hears speech clearly. |
| Microphone Quality Indicator (enable in Jabra app) | Yes | Real-time LED display confirms microphone pickup level before and during calls. |
| Compatible software and/or apps | Jabra Direct, Jabra Sound+, Jabra Xpress | Jabra Direct and Xpress enable firmware updates and fleet management across multiple units. |
| Talk-time | Up to 32 hours | |
| Corded charging | Integrated USB C cable with USB A adapter | |
| Charging time (USB C/A 1 A) | Up to 2.5 hours | |
| Charging time (USB C/A 0.5 A) | Up to 5 hours | |
| Battery type | Rechargeable lithium-ion battery | |
| Battery capacity | 4700 mA | |
| Connectivity | USB C or USB A, Bluetooth (for smartphone/tablet only) | USB plug-and-play means no drivers or IT configuration — works immediately. |
| Bluetooth adapter | USB-A | |
| Bluetooth® version | 5.2 | |
| Bluetooth® profiles | A2DP, AVRCP, BLE (for Microsoft Swift Pair, Google Fast Pair), HFP, HSP | |
| Operating range (Bluetooth) | Up to 30m | |
| Paired devices | Up to 8 Bluetooth devices | |
| Simultaneous Bluetooth connections | 2 | |
| Integrated USB cable length | ca. 75cm | Determines how far the device can sit from your laptop without an extension cable. |
| IP rating ** | IP64-rated protection from dust and water | |
| Warranty | 2 years | Jabra’s standard warranty period covering manufacturing defects. |
| Certifications and compliance *** | Microsoft Teams (variant dependent), Microsoft Teams Rooms (variant dependent), Microsoft Swift Pair, Alcatel-Lucent, Avaya, Cisco, Unify, MFi, Google Meet, Amazon Chime, Google Fast Pair | |
| Operating temperature | 0°C to 40°C | The ambient temperature range within which the device operates reliably. |
Jabra Warranty
Jabra Speak2 Series speakerphones carry a 2-year warranty covering defects in materials and workmanship under normal operating conditions.
Kickstart Computers is an authorised Jabra reseller in Australia. Contact us on 0416 353 501 for warranty assistance.
The Jabra Speak2 75 UC Speakerphone – Bluetooth, Link 390C USB-C suits small-to-medium meeting rooms and flexible working environments. Video conferencing equipment and Jabra cover the full range available.
