Every Payment,
Announced Instantly
Real-time audio payment confirmation for QR-based commerce — engineered, designed and manufactured in-house. Configurable for global standards and deployments.
Let's Bring Audio Payments To Your Market
Share your requirements and receive a free technology assessment from our experts.
Audio Confirmation Is Now Table-Stakes
QR payments scaled faster than the hardware around them. Merchants need an instant, hands-free way to confirm every transaction — without staring at a phone. The soundbox solved that. We took it further: an in-house designed, manufactured and software-controlled device family built for markets beyond India.
All-in-one QR soundbox — accepts payments from any UPI-enabled app and announces them aloud, instantly.

One Platform, Four Form Factors
Shared core electronics and a common TMS backbone — differentiated by display, input and portability to fit every merchant counter.

Soundbox
Audio-first QR device
RGB LED · 4 keys · 2W speaker
DQR 4.3
Dynamic QR + colour display
4.3″ LCD · merchant display
DQR 4.3″ + Keypad
Display, audio & numeric entry
4.3″ LCD · numeric keypad
Pocket Soundbox
Portable, on-the-go merchant
1000 mAh · ultra-compactTechies vs Typical OEM Import
No white-label resale. We own the full stack — from the enclosure CAD and PCB to firmware, cloud and the management console. That is what lets us configure for new markets, compliance regimes and brands quickly.
In-house design
Industrial design, enclosure CAD and PCB layout developed by our own engineering team — not sourced as a reference board.
Own manufacturing
Assembly, flashing and quality control on a controlled line. ABS shell, 1.0 m drop-tested, BIS-certified output.
Core technology
Dual-core ARM Cortex-R module, 4G/LTE Cat-1 connectivity, SSL/TLS security and OTA-ready firmware architecture.
Software & Cloud
Firmware, MQTT broker, AWS IoT pipeline and the TMS console — every layer engineered and maintained internally.
From Scan to Spoken Confirmation
PAYMENT TRIGGERS SUPPORTED
Webhooks · WebSockets · Server-Sent Events (SSE) · Message Queues · Pub / Sub
Compare the Family at a Glance
| Soundbox | DQR 4.3″ | DQR + Keypad | ||
|---|---|---|---|---|
| Processor | ARM Cortex-R | ARM Cortex-R | ARM Cortex-R | ARM Cortex-R |
| Display | — | 4.3" colour LCD | 4.3" colour LCD | — |
| Merchant display | — | 2" × 0.5" | 2" × 0.5" | — |
| Input | 4 keys | 4 keys | Numeric keypad | 4 keys |
| Speaker output | 84–87 dB | 84–87 dB | 84–87 dB | > 75 dB |
| Audio PA | 3.2W | 3.2W | 3.2W | 1.5W |
| Battery | 2000–2600 mAh | 2000–2600 mAh | 2000–2600 mAh | 1000 mAh |
| Connectivity | 4G + opt. 2G | 4G + opt. 2G | 4G + opt. 2G | 4G (LTE Cat-1) |
| Best for | Counter, audio-first | Display + audio | Full terminal | Mobile merchant |
Terminal Management System —
Your Fleet, Anywhere
A control centre for your entire terminal estate. TMS streamlines the full device lifecycle — from deployment to OTA updates and troubleshooting — with real-time visibility into every unit.

Device & network
Storage, CPU, memory, battery, IP, IMEI, operator & live location.
App details
App, SDK, sound-file & language versions; install history.
Scheduler
Schedule OTA jobs, advertisements and remote commands.
Onboarding
Link to merchant accounts, release OTP, un-bind, watch txn matrix.
Defender
Security metrics, anomaly detection, audits, alerts & mitigation.
Soundbox — Core Specifications
ABS shell · HB fire rating · 1.0 m drop-tested · BIS certified
Dual-core ARM Cortex-R, high-performance module
8 MB onboard
4G (LTE Cat-1), optional 4G + 2G fallback
2W nominal / 3W peak · 84–87 dB · PA 3.2W
2000–2600 mAh (optional), Type-C charging
SSL / TLS secure connectivity, OTA updates
Techies vs Typical OEM Import
Imported reference units look similar on a datasheet. The difference is ownership — of the design, the firmware, and the team who can change it for your market.
Typical OEM Import

Own the design, the firmware and the roadmap.
40+ Device Parameters, Tracked in One Go
Every device reports a rich live telemetry stream to TMS — so support, security and finance teams always see ground truth.
Health & hardware
- Online / offline status
- Battery level & temperature
- CPU, task & heap memory
- External storage size / used / free
- USB plugged state
- Audio volume level
Network & SIM
- Network strength & type
- SIM operator & details
- IMEI / IMSI numbers
- Mobile number
- MCC / MNC codes
- Time zone
Identity & versions
- Device model & first-online
- SDK / app / file versions
- Bind state & merchant
- Bound QR code
- Switch-on time
Transactions
- Transaction success rate
- Audio play delay
- Per-device txn matrix
- Live activity monitoring
SECURE MQTT + AWS IoT BACKBONE
Dedicated MQTT connection · TLS 1.2 end-to-end encryption · centralised broker · lightweight by design.
What We Handle for an Integration
Payment trigger
Wire your bank / PSP events into the device via webhook, WebSocket, SSE, message queue or pub-sub.
AWS configuration
Device configuration and load balancing tuned on AWS for efficient, reliable operation at scale.
Merchant onboarding
A flexible onboarding flow adapted to your KYC, account-linking and OTP requirements.
API integration
Clean APIs for software integration — communication and data exchange between your systems and ours.
Database schema
A well-defined schema to structure, store and manage device and transaction data effectively.
Ongoing support
OTA firmware, advertisement scheduling, remote commands and direct engineering support.
Let’s Bring Audio Payments to Your Market
In-house design, manufacturing and software — configurable for your brand, language, compliance regime and PSP. From a single pilot fleet to nationwide rollout.

