Stealth wireless chargers
Charge compatible phones through 10–50mm non-metal surfaces. Compare QB06, QB21 and QB31 for wood, stone, glass and furniture projects.
How it works
The transmitter mounts beneath a non-metal surface. On top, a slim marker or resonator pad shows where to place a Qi-compatible phone. The tabletop stays free from loose charging cables and plug-in pads.
Surface thickness determines the model: QB06 covers 10–30mm, while QB21 Pro and QB31 Max cover 20–50mm. Metal surfaces and metal-backed materials are not compatible.
Review installation requirementsStealth series
Start with surface thickness, then choose adhesive or screw mounting for the underside of your furniture.
10–30mm surfaces
For thinner desks, side tables and retrofit projects. QB06 mounts beneath the surface with adhesive and can be used without a resonator pad below 15mm.
QB06 charging test through a 15mm surface
See an iPhone 14 charging through a 15mm surface using QB06.
20–50mm surfaces
Our best-selling starting point for long-range charging through desks, tables and countertops. The included resonator pad marks the charging position above the surface.
QB21 charging test through a 30mm surface
See an iPhone 14 charging through a 30mm surface using QB21.
20–50mm surfaces
A screw-mounted option for furniture in shared and public spaces where a more secure underside installation is preferred.
QB31 charging test through a 30mm surface
See an iPhone 14 charging through a 30mm surface using QB31.
Side-by-side
The table focuses on the practical differences that affect model selection. For unusual constructions, test the complete surface assembly before ordering for a project.
| Specification | QB06 Elite | QB21 ProBest seller | QB31 Max |
|---|---|---|---|
| Surface thickness | 10–30mm | 20–50mm | 20–50mm |
| Underside mounting | Adhesive | Adhesive | Screws |
| Top-surface component | None below 15mm; pad above 15mm | 12cm resonator pad | 12cm resonator pad |
| Power input | 19V / 1A | 19V / 1A | 19V / 1A |
| Horizontal placement tolerance | ±10mm | ±10mm | ±10mm |
| Charging profiles | 5W Qi / 7.5W Apple / 10W Samsung | 5W Qi / 7.5W Apple / 10W Samsung | 5W Qi / 7.5W Apple / 10W Samsung |
| Recommended use | Thinner furniture and retrofits | Desks, tables and countertops | Shared or public furniture |
| Availability | Project enquiry | Online shop | Online shop |
Package contents
Plug type and package configuration should be confirmed when ordering.
Installation & guides
Check the material and thickness at the exact charging point, including any backing layer.
Connect the charger and verify phone placement before fixing anything permanently.
Use the supplied alignment board to match the transmitter below with the charging marker or resonator above.
Use the model’s specified adhesive or screw method, route the cable and test with the intended phones and cases.
Installation video: positioning, alignment and underside mounting.
Surface compatibility
Wood, MDF and laminate can work within the selected model’s thickness range.
Quartz, marble and granite can work, but the full construction should be tested.
Non-metal glass and plastic can work when thickness and mounting access are suitable.
Metal tops, foil layers and metal reinforcement block or disrupt inductive charging.
Frequently asked questions
An under-desk wireless charger is fixed beneath a non-metal table, desk or countertop. It transfers power through the surface to a Qi-compatible phone placed on the charging position above.
Yes. Wood, MDF and laminate can work when the total thickness at the charging point is within the selected model’s range. QB06 covers 10–30mm, while QB21 Pro and QB31 Max cover 20–50mm.
These non-metal stone surfaces can work within the model’s stated thickness range. Because stone constructions and backing materials vary, test your exact surface before a larger installation.
Choose QB06 for 10–30mm surfaces. QB21 Pro is the best-selling general option for 20–50mm surfaces and adhesive mounting. Choose QB31 Max when you need the same surface range with screw mounting underneath.
No. Metal surfaces, metal layers and metal reinforcement interfere with inductive wireless charging. Check the full surface construction, not only the visible finish.
Most thin, non-metal cases can work, but the case adds to the charging distance. Metal plates, wallet contents and some magnetic accessories can prevent charging.
QB06 and QB21 attach below the surface, so they do not need a through-hole in the finished tabletop. QB31 uses screws on the underside. Always check that the selected mounting method is suitable for your furniture.
Ready to evaluate?
For individual units, start with QB21 Pro or QB31 Max in the shop. For furniture, hospitality or volume projects, send the material, thickness, quantity and market.
