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 |
| Noise cancelling | ENC 2.0 (environmental noise cancellation) |
| 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 | IPX4 (unit) / IPX7 (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).
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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 (IPX7)
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 *5
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.
*5 Manufacturer: MIKI Engineering Co., Ltd. / Distributor: B-EAR
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.
05 — FAQ
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.