Walkie Talkie
Push-to-talk over the mobile network (PoC): press one key and the whole team hears you, anywhere in Singapore, with none of the range limits of a conventional radio. Rugged Android handsets and 4G keypad radios for hotel, security and logistics teams, with dispatch software, set up and supported by us. Where a site wants a plain radio with no SIM and no network, we supply conventional UHF/VHF two-way radios too.
FHD+, 120 Hz, 680 nits peak, Gorilla Glass 3. Runs the PTT app alongside any Google Play app.
Two shortcut keys: set one to push-to-talk, the other to torch, camera or any app.
2 × 4800 mAh. Change a pack without switching off — a call stays connected.
Dual drivers, about 2.6× a normal phone: heard over machinery, traffic and wind.
64 MP main and 20 MP infrared night vision for patrols and inspection; 32 MP front.
Survives 2 m drops, 2 m immersion for 30 minutes and high-pressure wash-down, at about 320 g.
Press and talk to the group. Calls go over 4G, so distance does not matter.
Shows the talk group, who is speaking and the signal.
Physical keys, no touchscreen to learn.
Nationwide coverage over the mobile network, no repeaters to install.
A full shift and more on one charge; explosion-proof build for plant and engineering areas.
Press and speak: the radio sends straight to the others on the same channel.
Turn the top knob to change channel; the smaller knob switches on and sets the volume.
A short antenna on top does the work: no SIM, no mobile signal and no data plan.
Shows the channel in use, so staff know which team they are talking to.
Front speaker and microphone for hands-free listening on the belt or in the hand.
A battery pack that clips on at the back and charges in a desk charger.
Three kinds of handset
The first two talk over the same PoC system, so a team can mix them. The conventional radio is a separate system that needs no network at all. The choice depends on the site and on what else the person needs to do.
Rugged PTT smartphone
A full Android phone with a push-to-talk key: talk to the team, and also run work apps, take photos and use GPS.
- Screen
- 6.5" touch, sunlight-readable
- Battery
- 2 × 4800 mAh hot-swap
- Protection
- IP69K, IP68, MIL-STD-810H
- Best for
- Supervisors, engineering, security, logistics
4G keypad PoC radio
Looks and works like a walkie-talkie: one big key to talk, a small screen and buttons, but with 4G range.
- Network
- 4G, unlimited distance
- Battery
- 6000 mAh
- Build
- Explosion-proof
- Best for
- Housekeeping, porters, F&B, plant rooms
Conventional two-way radio
The traditional walkie-talkie: radio to radio on UHF or VHF, with no SIM, no data plan and no dependence on the mobile network.
- Network
- Own radio channels, no SIM
- Range
- The building or site, longer with a repeater
- Running cost
- No airtime or data plan
- Best for
- One site: housekeeping, engineering, events
Models we supply include the Opio Xever8, X32 PRO, M8, M6, M6 Plus and X5. Brochures and the Opio PTT app are on our download page. For conventional radios, tell us the site and the number of users and we will recommend the models.
Compared with a conventional radio
PoC suits teams that spread over several buildings or move around the island. A conventional radio is simpler and stays cheaper to run when everyone is on one site.
Island-wide
Over the 4G/5G network, so a basement, a second building or the other side of Singapore are all in range.
Talk groups
Housekeeping, security and engineering each on their own channel, with managers able to reach everyone.
Dispatch and GPS
Dispatch software shows where each handset is, manages the groups and keeps voice logs for audits.
Apps too
The smartphones are Google-certified, so staff can use work apps from Google Play next to the PTT app.
Typical specifications
Figures for the models we supply most often; exact specifications are confirmed in the quotation.
| Rugged PTT smartphone | 4G keypad PoC radio | Conventional two-way radio | |
|---|---|---|---|
| Network | Global 4G LTE, eSIM, Wi-Fi, Bluetooth, NFC | 4G | UHF or VHF radio, no SIM |
| Range | Wherever there is mobile coverage | One building or site; a repeater extends it | |
| Running cost | Mobile data SIM for each handset | None: no SIM or airtime | |
| Display | 6.5" FHD+, 120 Hz, 680 nits | Colour display with keypad | Channel display, varies by model |
| Battery | 2 × 4800 mAh, hot-swappable, 4-in-1 dock | 6000 mAh | Rechargeable pack, desk charger |
| Speaker | 117 dB dual drivers | – | – |
| Protection | IP69K, IP68 (2 m / 30 min), MIL-STD-810H | Explosion-proof | Varies by model |
| Cameras | 64 MP + 20 MP night vision, 32 MP front | – | – |
| Positioning | GPS, GLONASS, BeiDou, Galileo, QZSS | – | – |
| Weight | About 320 g | – | – |
| Software | Opio PTT app or Pocstars, with dispatch console | None needed: channels set up on the radio | |
Who carries one
Choose a team to see which handset usually suits them.
- Usually
- Used for
Hafary: 5G PoC between showrooms and warehouses
We deployed a 5G push-to-talk system with Pocstars dispatch software and rugged Android handsets across Hafary's logistics network: island-wide voice, live GPS for dispatchers, voice logs, and warehouse apps from Google Play on the same device.
Read the case studyFrom demo to the whole team
Demo
We show the handsets and the PTT app on site, including basements and back of house.
Set-up
Talk groups, accounts and the dispatch console configured to your departments.
Handover
Handsets delivered ready to use, with docks and a short briefing for each team.
Support
App updates, replacements and changes to groups by our Singapore team.
Common questions
What is PoC?
Push-to-talk over cellular: the handset works like a walkie-talkie, but the voice travels over the mobile network, so range is wherever there is 4G or 5G coverage.
PoC or a conventional radio?
It depends on the site and the team. PoC reaches several buildings or the whole island and adds GPS, dispatch and voice logs, but each handset uses a mobile data SIM. A conventional two-way radio needs no SIM and no mobile network and has no running cost, but covers one building or site (a repeater extends it). We can supply either, or one for each team. Tell us the site and the number of users and we will recommend.
Do we need to install repeaters?
Not for PoC: it uses the mobile network, and each handset uses a mobile data SIM. A conventional two-way radio covers one building or site, and a repeater extends that range where needed.
Can a supervisor see where staff are?
Yes. The dispatch software shows each handset's GPS position, manages talk groups and records voice logs.
Can staff use other apps on it?
On the rugged smartphones, yes: they are Google-certified and install apps from Google Play next to the PTT app.
What happens when the battery runs low on a shift?
On the rugged smartphone, swap in the second battery without switching off; a call stays connected. The dock charges the handset and both spare packs.
Put together what you need
Choose the handsets and quantities, then send the list on WhatsApp or by email. Nothing is sent until you press send in WhatsApp or your email app.
Equipping a team?
Tell us the teams and how many users. We will recommend the handsets and quote the system, including dispatch and set-up.