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

Products

Reference platforms.

What follows are the platforms already engineered, tooled and running for customers — thirteen reference designs, not the whole range. Most programs start from the nearest one and change the key map, radio, housing or firmware. A model that is not listed here is usually a variant of these, or a new tooling program.

In this list
  • 2 platformsIR only — one with learning
  • 9 platformsIR + BLE — eight carry voice
  • 2 conceptsSolar, and an optical sensor

Family 01 — IR only

Infrared, done properly.

Two handsets with no radio at all. One carries a learning function so it can take over the remote already in the room; the other is laid out for soundbars.

IR45A
IR only · Available

IR45A

IR remote with learning · Smart TV / OTT

A full-size infrared handset with a learning function, so it can replace an existing remote without asking the user to learn a new layout.

RadioIR only
Range (m)≥8 m
Chip platformIR chipset
Voice—
Battery2× AAA
Size (mm)186 × 47.5 × 21.5
Full specification

Family 02 — IR + BLE voice

The main line: voice, dual mode, air mouse.

Nine handsets. Eight carry voice input, two of those add a six-axis air mouse. Silicon comes from Telink, Realtek and the HS6621C family, across BLE 4.2, 5.1 and 5.2 — the older designs stay in supply for installed programs.

RF39A
BLE · Available

RF39A

BLE remote · Smart TV / OTT

A long-format BLE handset for EMEA and US TV and OTT platforms. No voice and no air mouse — a stable BLE remote for programs that do not need them.

RadioRF + BLE
Range (m)RF ≥15 m
Chip platformTelink 8251
Voice—
Battery2× AAA
Size (mm)230 × 72 × 18
Full specification
RF41A
IR + BLE · Available

RF41A

RF remote with voice · Smart TV / OTT

Three radios in one handset — RF, IR and BLE — with a microphone for voice search and a BLE 5.2 SoC underneath.

RadioRF + IR + BLE
Range (m)RF ≥15 · IR ≥8 · voice ≥10 m
Chip platformBLE 5.2 SoC
VoiceYes
Battery2× AAA
Size (mm)150 × 40 × 17
Full specification
RF16D
IR + BLE · Available

RF16D

BLE voice remote · Smart TV / OTT

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.

Radio2.4G RF + BLE
Range (m)≥15 m
Chip platformHS6621C
VoiceGoogle
Battery2× AAA
Size (mm)143 × 39 × 17
Full specification
RF21A
IR + BLE · Available

RF21A

BLE voice remote · Smart TV / OTT

The shorter sibling of RF16D: same HS6621C platform and Google voice, in a 140 mm body.

Radio2.4G RF + BLE
Range (m)≥15 m
Chip platformHS6621C
VoiceGoogle
Battery2× AAA
Size (mm)140 × 38 × 18
Full specification
RF29A
IR + BLE · Available

RF29A

BLE voice remote · IR learning

A longer handset that combines voice with IR learning, so one remote can drive the TV and the box beneath it without a second code set.

RadioRF + IR + BLE
Range (m)RF ≥15 · IR ≥8 · voice ≥10 m
Chip platformHS6621C
VoiceYes
Battery2× AAA
Size (mm)185 × 43 × 15
Full specification
RF14A
IR + BLE · Available

RF14A

BLE voice remote · Smart TV / OTT

An entry dual-mode voice remote on the Realtek 8752CRF platform, still in supply for installed programs that run BLE 4.2.

RadioRF + IR + BLE
Range (m)RF ≥15 · IR ≥8 · voice ≥10 m
Chip platformRealtek 8752CRF
VoiceYes
Battery2× AAA
Size (mm)150 × 37 × 14
Full specification
RF14B
IR + BLE · Available

RF14B

BLE voice remote · Aluminium case

The same electronics as RF14A in an aluminium housing, for programs where hand feel is part of what the customer is buying.

RadioRF + IR + BLE
Range (m)RF ≥15 · IR ≥8 · voice ≥10 m
Chip platformRealtek 8752CRF
VoiceYes
Battery2× AAA
Size (mm)150 × 37 × 14
Full specification
R16C
IR + BLE · Available

R16C

BLE voice remote + air mouse · Smart TV / OTT

Voice plus a six-axis air mouse for pointer control on TV and OTT interfaces, built on the Realtek 8752CRF platform.

RadioRF + IR + BLE
Range (m)RF ≥15 · IR ≥8 · voice ≥10 m
Chip platformRealtek 8752CRF
VoiceYes + air mouse
Battery2× AAA
Size (mm)165 × 42 × 17
Full specification
RF45A
IR + BLE · Available

RF45A

BLE voice remote + air mouse · Smart TV / OTT

The long-body version of the air-mouse design, with a larger key surface for living-room use and the same Realtek platform.

RadioRF + IR + BLE
Range (m)RF ≥15 · IR ≥8 · voice ≥10 m
Chip platformRealtek 8752CRF
VoiceYes + air mouse
Battery2× AAA
Size (mm)211 × 44 × 20
Full specification

Family 03 — New concept

Two designs that are not in mass production yet.

They answer two questions customers ask: can the handset lose the battery, and can one voice channel cover a simpler product? They are shown as concepts, not as orderable SKUs.

RF20A
New concept · Solar

RF20A

Solar remote · no battery

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.

RadioRF + IR + BLE
Range (m)RF ≥15 · IR ≥8 · voice ≥10 m
Chip platformBLE 5.2 SoC
VoiceYes
BatteryNone — solar
Size (mm)180 × 37 × 10
Full specification
R36A
New concept · Optical

R36A

BLE voice remote · single-channel voice

A concept design that pairs a single-channel voice input with a Bosch optical sensor, on Realtek or Actions silicon — fewer parts, same core interaction.

RadioRF + BLE
Range (m)≥15 m
Chip platformRealtek / Actions + Bosch
VoiceSingle channel
Battery2× AAA
Size (mm)185 × 40 × 15
Full specification

Beyond this list

If your model is not on this page, it probably still exists.

The list holds the platforms stable enough to document. Customer variants ship every month without a listing, and new tooling is routine.

01

A variant of these platforms

Different key count, radio mix or finish on an existing platform. Usually the fastest route: no new mould, firmware re-scoped.

02

Your own tooling

You own the enclosure. We supply the board, firmware and test specification for a housing we did not mould.

03

A new tooling program

When the product needs a housing that does not exist, the program starts at ID and mould design.

Send a photo, a drawing or a competitor’s remote. We will tell you which of the three it is, and what has to be rebuilt.

Compare

Every documented platform, one table.

Type, radio, range, chip, battery and size side by side. Ranges are platform values; the datasheet states the figure for your configuration.

On a narrow screen, swipe the table sideways for chip, battery and size.

Model Status Radio Range (m)RF / IR / voice Chip platform Voice Air mouse Battery Size (mm) Application
IR45A Available IR only ≥8 m IR chipset — — 2× AAA 186 × 47.5 × 21.5 Smart TV · OTT
RF39A Available RF + BLE RF ≥15 m Telink 8251 — — 2× AAA 230 × 72 × 18 Smart TV · OTT
RF41A Available RF + IR + BLE RF ≥15 · IR ≥8 · voice ≥10 m BLE 5.2 SoC Yes — 2× AAA 150 × 40 × 17 Smart TV · OTT
RF16D Available 2.4G RF + BLE ≥15 m HS6621C Google — 2× AAA 143 × 39 × 17 Smart TV · OTT
RF21A Available 2.4G RF + BLE ≥15 m HS6621C Google — 2× AAA 140 × 38 × 18 Smart TV · OTT
RF29A Available RF + IR + BLE RF ≥15 · IR ≥8 · voice ≥10 m HS6621C Yes — 2× AAA 185 × 43 × 15 Smart TV · OTT
RF14A Available RF + IR + BLE RF ≥15 · IR ≥8 · voice ≥10 m Realtek 8752CRF Yes — 2× AAA 150 × 37 × 14 Smart TV · OTT
RF14B Available RF + IR + BLE RF ≥15 · IR ≥8 · voice ≥10 m Realtek 8752CRF Yes — 2× AAA 150 × 37 × 14 Smart TV · OTT
R16C Available RF + IR + BLE RF ≥15 · IR ≥8 · voice ≥10 m Realtek 8752CRF Yes + air mouse 6-axis 2× AAA 165 × 42 × 17 Smart TV · OTT
RF45A Available RF + IR + BLE RF ≥15 · IR ≥8 · voice ≥10 m Realtek 8752CRF Yes + air mouse 6-axis 2× AAA 211 × 44 × 20 Smart TV · OTT
RF20A Concept RF + IR + BLE RF ≥15 · IR ≥8 · voice ≥10 m BLE 5.2 SoC Yes — None — solar 180 × 37 × 10 Smart TV · OTT
R36A Concept RF + BLE ≥15 m Realtek / Actions + Bosch Single channel — 2× AAA 185 × 40 × 15 Smart TV · OTT

Status: Available is a production design in the current line. Concept is a design direction shown for discussion, not an orderable SKU. Range is listed as RF / IR / voice, in metres.

OEM / ODM

Board and firmware for your own enclosure.

When you already own the ID and tooling, we supply the control module: board, key matrix interface, radio and firmware, documented so your assembly partner can build it. The same silicon platforms used above are available here.

Module

Control board

Key matrix, backlight, voice and radio, matched to your structure and key count.

Firmware

Your code or ours

Use our firmware platform, or take the board and develop it with your own team.

Delivery

Test and documentation

Production test items, code tables and flashing instructions ship with the module.

Note. OEM modules are quoted against the enclosure, key count and protocol. A module is not a drop-in replacement for another supplier’s board without a fit and RF review.

Datasheets

A datasheet follows the scope, not the other way round.

We issue a datasheet after the key map, radio and market are known, because a generic PDF invites the wrong comparison. Tell us which model you are evaluating and what has to change — or start from a blank sheet, which is a normal starting point too.

For active programs, the datasheet is versioned with the approved specification.

A datasheet follows the scope, not the other way round.

Start a project

Pick a model. We will tell you what has to change.

If none of them fits, the program starts from a blank sheet — that is a normal starting point too.

Typical reply within one business day