ALVO1.9
ALVO1.9
ALVO1.9 / Specification
Master ALVO1.9M-MB / Remote ALVO1.9R-MB. Unit specifications, plus every accessory you can build a deployment from, listed with part numbers.
01 — Lineup
A group is one Master plus Remotes, and up to 10 people talk at the same time. The LCD shows group, ID, volume, room, talk status and battery level.
MASTER ALVO1.9M-MB
REMOTE ALVO1.9R-MB
02 — Specification
| Model | Master ALVO1.9M-MB / Remote ALVO1.9R-MB |
|---|---|
| Size & weight | 88.3 (H) × 50.5 (W) × 12.5 (D) mm / 95g |
| Material | PC plastic / aluminium frame |
| Battery | Lithium-ion 3.8V / 2,000mAh |
| Runtime | Master approx. 9h (with 5 Remotes connected) / Remote approx. 30h |
| Charge time | Approx. 3–5 hours |
| Simultaneous talkers | Up to 10 per group |
| Frequency | 1.893 – 1.906GHz (1.9GHz DECT) |
| Audio response | 200Hz – 3.6kHz |
| Headset connection | Bluetooth 5.2 / USB Type-C Wired headsets require the dedicated adapter cable (B-ALGCs / B-ALGCd). |
| Audio output | Max SPL 111.8dB (EAR013), under 20mW @10%THD / RL=33Ω |
| Range | Approx. 800m horizontal / approx. 200m vertical *1*3 |
| Modulation | GFSK |
| Controls | Volume, power/talk, mode select, Bluetooth and room switching |
| LCD display | Group, ID, volume, room, talk status, battery level |
| External connection | Bluetooth 5.2 / USB Type-C |
| Port | USB Type-C (audio in/out and charging) |
| Group linking | Up to 18 units by wiring Masters together with a relay cable / up to 3 groups, 26 units and approx. 2.4km with relay bases *2 |
| Roaming | Register up to 4 groups (manual switching by short-pressing the mode button) |
| Ingress protection | IP54 (unit) / IP67 (with optional waterproof case) |
| Security | AES-256 encryption |
*1 Measured in open line of sight with no obstructions. Actual range varies with environment and weather.
*2 A unit acting as a relay cannot be used for talking, which reduces the number of simultaneous talkers
by that amount. 10 units per group across 3 groups is 30 in total; 4 act as relays, so 26 can talk at once.
3 groups, 26 units and approx. 2.4km is the upper limit. The 2.4km figure assumes clear
line of sight; how far it actually carries depends on the site.
*3 800m is the total distance between two Remotes with the Master in between (approx. 400m horizontal on each side).
03 — Accessory
How it is worn, how many units you charge at once, how much area you cover, which headset your crew prefers — combine to suit the site.
B-ALC1
Belt clip case
B-ALC2
Waterproof case (IP67)
B-ALC01
Single-unit charger *1
B-F06
USB Type-C charging cable
B-ALEX10
Relay cable, 1m
B-ALEX30
Relay cable, 3m
B-ALC10a
10-unit charger *2
B-ALC10b
10-unit charger
with carry case
B-ALEXa
Relay base *1
B-ALGCs
Adapter cable, single
3.5mm/USB-C *3
B-ALGCd
Adapter cable, double
3.5mm/USB-C *4
B-VST
B-EAR vest
B-RFTC
VoiSniper
RFTC
SSW-1121
VEXA *1
SKZ-EPB2
Shokz OpenComm2
2025 Upgrade ※1
AUROEA-500
AURO, Bluetooth type *1
*1 Supplied with a USB-C charging cable.
*2 Supplied with an AC adapter.
*3 Connects to the plug of a headset used with BRIDGECOM X5, making it usable with ALVO1.9.
*4 Connects to the plug of a headset used with BRIDGECOM X10 or X10 Athlete, making it usable with ALVO1.9.
An off-the-shelf USB Type-C headset cannot be plugged straight into the ALVO unit;
the dedicated adapter cable is required. Even with the adapter, some headsets may
not operate correctly depending on their specification.
How many Masters and Remotes, which charger makes sense, which headsets to pair.
Give us the conditions on your site and we will put a configuration together.