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+86 186 1711 2376 peter.sun@serow-tech.com

Own factory · Shenzhen

Custom remote controls,
built in-house.

For TV/AV, smart home, hospitality and furniture brands. 32 engineers, 12 lines, one factory.

SEROW SEALED D-PAD IR + BLE DUAL RADIO
Established
2014Shenzhen
R&D
32engineers
Assembly
12remote-control lines
Tooling
100tools per year

Process

From a protocol document to a shipped device.

Six stages, one team from start to shipment. The weeks shown are typical ranges, not promises.

01

Brief and protocol review

Target, radio and markets.

Week 0–1
02

Concept and ID/MD

Ergonomics, keys, CMF, tooling.

Week 1–3
03

Electronics and firmware

PCB, radio, IR library, OTA.

Week 3–6
04

Prototype

Samples for fit and code.

Week 5–8
05

Validation and certification

Reliability tests and filing.

Week 8–12
06

Mass production

Tooling, pilot run, shipment.

Week 12+
Surface-mount lines on the assembly floor.
SMTSurface-mount lines on the assembly floor.
See the full process and commercial terms
Assembly
AssemblyRemote-control lines
Moulding
MouldingInjection floor
Tooling
ToolingToolroom

Protocol fit

Know which protocols the remote supports before you commit.

We publish the boundary, not just the feature list.

Protocol Typical use Status
Infrared (IR) TV, AV, audio, HVAC Supported
Bluetooth LE Voice, pairing, OTA, apps Supported
RF 433 / 868 MHz Furniture, shades, room control Supported
2.4 GHz proprietary AV integration, multi-room Project-scoped
Wi-Fi Cloud-connected control Project-scoped
Zigbee / Matter Ecosystem integration Review required

● Supported   ○ Project-scoped   · Review required

Build and test

Built and tested under one roof.

Assembly, tooling and the test lab sit in the same building.

61
Reliability tests

Climate, mechanical, RF, chemical.

29
Lab instruments

Chambers, salt fog, UV, ESD.

12
Assembly lines

Dedicated to remote controls.

100
Tools per year

Mould shop in-house.

Climate, drop and ESD chambers on the test floor.
LABClimate, drop and ESD chambers on the test floor.

Counts describe capability, not a per-model rating.

See the 61 tests

Platforms

Thirteen models. Start from the closest one.

Two IR-only handsets, nine IR and BLE voice remotes, two concept platforms.

RF20A
RF + IR + BLE · Concept

RF20A

180 × 37 × 10

A battery-free concept: a solar panel under the key area keeps it charged, with RF, IR, BLE and voice on board. At 10 mm it is the thinnest design in the line.

Full specification
17A
IR only · Available

17A

183 × 44.45 × 16.5

An infrared handset developed for soundbars: TV, HDMI and dialogue keys on top, volume, subwoofer and listening modes below.

Full specification
RF16D
2.4G RF + BLE · Available

RF16D

143 × 39 × 17

A compact Google voice remote on the HS6621C platform: 2.4 GHz RF plus BLE, with a four-key app row and a soft-touch body.

Full specification
Thirteen models, one table. Type, radio, range, chip, battery and size side by side.Compare the models

Selected work

Real deliveries, not renderings.

Client names stay private. Each profile gives scope and program length.

One remote for three TV generations.
Hospitality
EUROPE · HOTEL GROUP

One remote for three TV generations.

Sealed IR and BLE handset that survives daily cleaning, shipped pre-configured per property.

  • Sealed IR + BLE handset
  • Batch configuration
  • 5-language keypad
3
TV generations
12 wk
Prototype to pilot
5
Keypad languages
A pairing flow guests cannot break.
Smart home
NORTH AMERICA · CONTROL PLATFORM

A pairing flow guests cannot break.

White-label BLE handset with OTA and a recovery path that needs no service call.

  • BLE + 2.4G platform
  • White-label firmware
  • OTA update path
2
Radios
8 wk
Functional prototype
1
Recovery flow
Low-power control, used twice a day for years.
Smart furniture
EUROPE · ADJUSTABLE BED BRAND

Low-power control, used twice a day for years.

Larger keys and press protection, on the existing RF receiver.

  • Custom ID and key layout
  • RF 433 platform
  • Drop and key-life testing
18 mo
Battery target
2
Tooling rounds
10 wk
To pilot run

Representative project profiles. Figures are rounded to describe scope.

Read all case profiles

Before you ask

The questions every project starts with.

If the answer is not here, ask directly.

Ask a different question
What is the minimum order?
It depends on the platform and the level of change. A white-label program starts lower than a new enclosure with tooling; we quote both paths.
How long does a prototype take?
3 to 5 weeks after the specification is agreed on an existing platform. A new enclosure adds tooling and validation time.
Who owns the tooling and the design?
Agreed in writing before the project starts: your tooling, or tooling we develop with ownership transferred to you.
Who handles certification?
We prepare samples and technical files and work with the test house. The certificate goes to the brand owner or the factory, depending on the market.

Start a project

Bring us the protocol. We will bring the device.

Send the control target, the radio and the market. You get a written next step.

Typical reply within one business day