Series 03 — Acoustic
Quiet Single Acoustic Phone Booth
NRC 0.85 inside, 35 dB attenuation — installed in 60 minutes.
A free-standing single-occupancy acoustic phone booth with 35 dB sound insulation, motion-activated ventilation and a user-configurable LED dimming. Pre-assembled in four panels — installs by two people in under 60 minutes. No site construction, no wiring beyond a single 220 V outlet.
- Open-plan corporate HQ — focus and call zones
- Co-working memberships needing private call space
- Hotel lobby business corners
- Tech-campus collaboration floors

Why specify Phone Booth
Test reports answer the bid sheet. Engineering answers the long term.
01
35 dB attenuation, NRC 0.85 inside
Independent ISO 23351-1 test report shows 35 dB insulation across 250–4 kHz — answers tender ABC scoring directly.
02
No site construction needed
Free-standing, no fixings to floor or ceiling. Lift-out and re-locate with a pallet jack — fully relocatable asset on the project P&L.
03
Two-person install in 60 minutes
Four pre-assembled panels + glass door + roof. Single 220 V plug. Tested with non-trade installers — 56-minute average.
04
Recycled-PET acoustic core
Acoustic insulation made from 70% recycled PET bottles; outer skin uses water-based UV paint; topcoat GREENGUARD Gold.

Standard Finishes
4 stock finishes.
All finishes are factory-applied with low-VOC, water-based UV-cured topcoats (GREENGUARD Gold). Custom RAL, Pantone or veneer matching available for project quantities ≥ 30 units.
Tested To
Technical Specification
Full data sheet
| External dim. | 1,000 × 1,000 × 2,300 mm (W × D × H) |
| Internal width | 900 mm |
| Wall composite | 50 mm — recycled-PET core + MDF outer + felt inner |
| Front door | 32 mm tempered laminated glass (8 + 8 mm dual-pane) |
| Sound insulation | 35 dB Dn,e,w (ISO 10140) |
| Internal NRC | 0.85 (ISO 354) |
| Ventilation | EC fan, 90-sec air refresh, motion-activated |
| Lighting | LED 3000 K, 0–100% touch dim |
| Power | 100–240 V single plug; USB-C + USB-A + Type-F outlets |
| Install time | 50–60 min, two people, hex tools supplied |
| Mobility | Free-standing; rolls with pallet jack |
| Compliance | CE marked, ISO 23351-1 acoustic class A |
| Warranty | 5 yr structure / 3 yr electronics |
Full PDF spec sheet, BIM Revit family, and original test reports available on request to qualified buyers.
SKUs & Lead Times
How it ships
Charcoal exterior + moss felt
MOQ 4 units
Charcoal exterior + oak frame
MOQ 4 units
Bone exterior + cream felt
MOQ 4 units
In Detail
About Quiet Single Acoustic Phone Booth
OBJEKT's Quiet Single Phone Booth is a CE-marked free-standing acoustic enclosure for one occupant. Walls are a 50 mm composite of recycled-PET acoustic core, painted MDF outer skin and a 32 mm tempered laminated glass front door (8 + 8 mm dual-pane). Internal NRC of 0.85 is achieved with a wool-felt back wall and ceiling. A silent EC-fan with motion sensor refreshes air every 90 seconds; LED light dims via a single front-panel touch slider; an integrated USB-C, USB-A and Type-F outlet trio sits below the desktop. Floor-rolled on installation, the booth ships flat-pack in a single crate per unit and assembles by two people in 50–60 minutes with the supplied hex tools.
Common Applications
- Open-plan offices needing focus / call retreats
- Co-working operators monetising private call slots
- Hotels offering business-corner privacy
- Universities and libraries needing flexible study pods
Industries Where Specified
Where Phone Booth works.
Specifier Resources
Read before you specify.
Specification · 7 min read
How to read a BIFMA X5.1 test report (without becoming a lab tech)
A 7-minute walk-through of every section of a BIFMA X5.1 task-chair test report — what passes, what fails, and the three numbers that actually matter.
Acoustics · 8 min read
Acoustic phone booths: a buyer’s guide for workplace leads
NRC, Dn,e,w, ISO 23351-1 — the three measurements that should drive your phone-booth shortlist. Plus the install-time question most procurement teams forget.
Procurement · 6 min read
A 12-point procurement checklist for electric sit-stand desks
The questions that separate a USD 220 sit-stand desk from a USD 650 sit-stand desk — and which of them actually matter for a 7-year fit-out.
Specify Phone Booth in your next project.
Spec sheets in EN/FR/DE/ES, BIM Revit families and finish library boxes ship to your studio in five working days.