Somfy Sonesse 28 WireFree: the small battery motor for light interior shades
Somfy Sonesse 28 WireFree, with 2026 retail prices for every model, specifications and Somfy's documents.
What is the Somfy Sonesse 28 WireFree?
The Somfy Sonesse 28 WireFree is a compact battery-powered motor for light interior shades, made in RTS and Zigbee versions and with either a built-in lithium-ion battery or an external battery. In 2026 the Somfy Sonesse 28 WireFree range runs from $189.08 (Sonesse 28 WireFree RTS (External Battery)) to $231.33 (Sonesse 28 WireFree Zigbee (Li-ion)), retail, product only.
It belongs to the quiet Sonesse family: Somfy lists the Zigbee Li-ion version at 44 dB, with a soft start and soft stop. No wiring runs to the window, so it suits a shade added after the walls are closed. The RTS versions answer Somfy's RTS remotes and wall switches; the Zigbee versions work with Ysia remotes and the TaHoma switch, which also reports the shade position and the battery level on a phone.
How much does the Somfy Sonesse 28 WireFree cost?
In 2026 the Somfy Sonesse 28 WireFree range runs from $189.08 (Sonesse 28 WireFree RTS (External Battery)) to $231.33 (Sonesse 28 WireFree Zigbee (Li-ion)), retail, product only.
| Product | SKU | Control | Power supply | Noise | 2026 retail |
|---|---|---|---|---|---|
| Sonesse® 28 WireFree RTS (External Battery) | 1241230 | RTS, Battery (WireFree) | DC 12V | 49 dB | $189.08 |
| Sonesse® 28 WireFree Zigbee (External Battery) | 1241754 | Zigbee, Battery (WireFree) | DC 12V | 45 dB | $202.41 |
| Sonesse® 28 WireFree RTS (Li-ion) | 1003297 | RTS, Battery (WireFree) | DC 12V | 49 dB | $220.32 |
| Sonesse® 28 WireFree Zigbee (Li-ion) | 1241755 | Zigbee, Battery (WireFree) | DC 12V | 44 dB | $231.33 |
Product only. Installation, programming and wiring are quoted at the measure. Prices are 2026 retail in US dollars, before tax, and may change.
Sonesse 28 WireFree Zigbee (Li-ion) specifications
Somfy's published figures for the Sonesse 28 WireFree Zigbee (Li-ion) (SKU 1241755). Other models on this page differ in control, torque and power; see the price table.
| Protection Index | IP 20 |
|---|---|
| Radio Frequency | 2.450 GHz |
| Range in open field | 262.48 ft |
| Number of batteries | 1 |
| Autonomy | Recharge once per year 9, 5 months in Somfy reference blind: Blind description: 1, 2m wide, 2m high, Ø32mm tube, bottom bar 300g/m, fabric 375g/m², 1cycle/day, 20% friction, low RF traffic. |
| Consumption during operation | 7.8 W |
| Power supply | DC - RGE 12 - 12V |
| Consumption in standby mode | 0.09 W |
| Noise level (dB) | 44 dB |
| Approvals | UL |
| Compatible Protocols | Zigbee 3.0 |
| Embedded Technologies | Zigbee 3.0 |
| Applications | Interior Window Coverings / Blinds, Interior Window Coverings / Shades |
Sonesse 28 WireFree Zigbee (Li-ion) documents from Somfy
Spec sheets and installation guides published by Somfy (PDF, opens on somfy.com).
- Sonesse 28 WireFree Zigbee (Li-ion)_Spec Sheet
- Sonesse 28 WireFree Zigbee (Li-ion) Launch Flyer/Spec Sheet
- Programming Guide - Zigbee Standalone Solution Using Ysia Remotes [V1.1]
- Programming Guide - TaHoma pro Manufacturer Version [V1.4]
- Zigbee End User Brochure
- Zigbee Dealer Brochure
- WireFree Motor Poster 2023
- WireFree Databook
Where the Sonesse 28 WireFree fits
Small WireFree motors suit bedroom and office roller shades in finished condos from Miami Beach to Fort Lauderdale, where opening a wall for power is not an option. For a bigger or heavier shade, the next step up is the Sonesse ULTRA 30 WireFree or the Sonesse 40 WireFree. See how we choose between battery and wired motors on Somfy WireFree.
Somfy Sonesse 28 WireFree: frequently asked
How much does the Somfy Sonesse 28 WireFree cost?
In 2026 the Somfy Sonesse 28 WireFree range runs from $189.08 (Sonesse 28 WireFree RTS (External Battery)) to $231.33 (Sonesse 28 WireFree Zigbee (Li-ion)), retail, product only. Installation, programming and wiring are quoted at the measure.
Does the Sonesse 28 WireFree need an electrician?
No. It runs on its own battery, built in on the Li-ion versions or in an external battery on the others, so no wiring reaches the window. The Li-ion versions are recharged through a cable or a solar panel.
Do these prices include installation?
No. Product only. Installation, programming and wiring are quoted at the measure. Prices are 2026 retail in US dollars, before tax, and may change.
Compare with other Somfy shade and blind motors
Somfy Sonesse 28 WireFree in Fort Lauderdale, Miami, Boca Raton & Palm Beach
Exotic Shades is a certified Somfy Expert and SDN Specialist. Our workroom and showroom are at 4539 Powerline Rd in Fort Lauderdale, our second showroom is South of Fifth in Miami Beach, and the same in-house team measures, builds, installs and programs from Miami to Palm Beach.
Get a quote for the Somfy Sonesse 28 WireFree
We measure, choose the motor and controls with you and quote the product, the shade or drapery and the installation together. One free hour with our team routinely saves owners thousands in avoidable mistakes.