









Phone Box with GS certificate & 27.8 dB sound reduction (ISO standard) | Chatbox Solo
Tax excluded.
6-10 weeks
The Phone Box is the well-designed solution for anyone who wants to have private conversations or retreat for focused work in open-plan offices. It transforms hectic office spaces into flexible work zones with maximum privacy, acoustic relief and professional equipment at the highest level.
Efficiency begins with calm.
Whether for a spontaneous video conference, a sensitive client meeting, or a creative break – the Phone Box offers the perfect space. The certified sound insulation according to ISO 23351-1 (Class B) ensures a demonstrably quiet interior, shielding against ambient noise and improving speech intelligibility. This not only increases productivity but also reduces mental strain caused by constant distractions.
FAQ
What is the Phone Box Chatbox Solo – and when is it worth using?
The Phone Box Chatbox Solo is an acoustically optimized individual booth for confidential phone calls, video calls, and focused work in open-plan offices. It creates privacy without the need for permanent construction work or new meeting rooms.
How good is the sound insulation of the Phone Box (27.8 dB) really?
The Phone Box achieves a Speech level reduction of 27.8 dB (Class B) according to ISO 23351-1.
What does ISO 23351-1 “Class B” mean in the context of a phone box?
ISO 23351-1 is a standard that specifies the Speech level reduction comparable to office boxes. Class B It provides excellent shielding in everyday office life, especially for calls and sensitive conversations.
How is the ventilation – does the air in the Phone Box stay fresh?
The Phone Box has an energy-efficient ventilation system (max. 5.1 W) with Airflow over 55 l/s (198 m³/h). You control the lights and ventilation via the integrated touchscreen. Additionally, the interior air quality is displayed as... GOLD/VOC-tested designated.
Is the lighting sufficient for video calls and focused work?
Yes. Phone Box is equipped with an LED light (28 W, 4000 K, 2240 lm) described. It's bright enough for video calls, taking notes, and working on a laptop.
What size is the Phone Box – and how much space do I need in the office?
External dimensions: 222 × 125 × 98 cm (H/W/D). Internal dimensions: 204 × 113 × 91 cm (H/W/D). This makes it noticeably more spacious than many traditional phone booths. A ceiling clearance of [insert value here] also serves as a guideline. at least 10 cm.
What connections (power/USB) does the Phone Box have for laptops? & Mobile phone?
By default, there is 110–240 V (10 A) plus USB-A and USB-C.
How are reverberation inside and "leaks" at the door/glass solved?
Inside, the use of EchoFree acoustic panels For less reverberation and better speech intelligibility. The Phone Box uses [technology/technology] for external shielding. sound-insulating, laminated safety glass. This helps against typical weaknesses such as reflections and "sound leakage" via hard surfaces.
What alternatives are there in the same category (comparable, larger, quieter)?
If you want to compare, it's worth taking a look at the category Office boxes. Common alternatives include:
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more compact: Chatbox Single
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more people: Chatbox Duo
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higher sound levels in class A: Framery One Compact or Silen Space 1.
Installation and Delivery
Baltics
Adolescents / Adults
until delivery
for orders CHF 1500 and over
Order risk-free


Certified top quality at an unbeatable price
Industry Leader in Sound Insulation: For Undisturbed Concentration
Class-A speech level reduction of up to 31 dB, certified according to ISO 23351-1.
Focus on Sustainability: Made in Europe, Built to Last for Decades
Produced from robust, renewable materials and designed for an exceptionally long service life.
Demonstrably Certified Product Excellence
Acoustics, comfort, and sustainability tested and confirmed according to recognized standards.
Dynamische Besprechungsräume
Maximum flexibility for your workspace
Customizable
Changed needs? No problem. The magnetically adhering outer covers can be exchanged in an instant – flexible, durable and economical.
Expandable
Whether team growth or new requirements: Our pods grow with you. A 2-person box quickly becomes a 4-person box – expandable, cost-effective, and adaptable at any time.
Movable
Our pods can be effortlessly moved thanks to integrated castors – right to where you need them.
This is what makes our Silen Pods special
Best sound absorption
up to 31 dB speech level reduction
Sustainable service life
Fully Renewable
Dimmable Lighting
LED lighting (4000K/900 lm)
Adjustable Airflow
40 l/s fresh air – four times more than required

From Standard to Premium
Our Silen Collection
Chat Box: Our standard line
By focusing on a well-designed standard configuration, the Chat Box offers a unique price advantage – with consistently high acoustic performance and product quality.





Space: Our Premium Line
It impresses with a rounded, iconic design language, the finest materials, and maximum customizability. Whether colors, surfaces, or technical equipment – every detail can be adapted to your vision.



Intuitive Control for Maximum Comfort
Our Smart Pods can be easily adapted to your individual needs via an integrated touchscreen. Whether it's the CO₂ sensor, ventilation flow, light intensity or colour temperature – all settings can be conveniently adjusted.
Proven productivity increase
With Silen Pods, you can demonstrably increase your team's productivity – through a work environment that reduces distractions and promotes focused work.
Over 50% of employees in open-plan offices have difficulty concentrating.
It takes 20 minutes to fully regain concentration after a brief distraction.
Those who work in an open-plan office are 15% less productive.
Model comparison
Well informed makes better decisions!
In our comprehensive office box comparison, you'll learn what really matters when buying an office box – concise, understandable, and manufacturer-independent.
To the Office Box Guide





Chat Box by Silen (Essential Line)
Silent Room by Narbutas (Classic Line)
Space by Silen (Prime Line)
★★★★☆
27.3 dB – Certified to ISO 23351-1
★★★☆☆
23 dB – Certified according to ISO 23351-1
★★★★★
30.4 dB – Certified according to ISO 23351-1
★★★★☆
Adjustable via touchscreen
★★★☆☆
Adjustable with control lever
★★★★★
With touchscreen / adjustable airflow
★★★★★
Dimmable via touchscreen / Light color can be changed
★★★☆☆
Dimmable with control lever
★★★★★
Dimmable with touchscreen / Light color can be changed
★★★★☆
Good pitch conditions
★★★★☆
Plenty of space, different versions
★★★★★
Very Good Space Conditions
★★★☆☆
Standard colours at no extra charge, special colours at additional cost
★★★★★
Many things individually configurable at no extra cost
★★★★★
Many things individually configurable at no extra charge
★★★★★
Movable has wheels, can be extended at any time, exterior cladding can be easily replaced
★★☆☆☆
Must be dismantled for relocation, little flexibility
★★★★★
Movable, it has casters, can be expanded at any time, external cladding can be easily replaced
★★★★★
from CHF 9,900.–
★★★★☆
from CHF 11,995.–
★★★☆☆
from CHF 15,990.–
You're in good company






This is what our customers say
Facts & Figures
97.5%
Customer Satisfaction
Our customers are our focus – almost all of them are completely satisfied with our products and our service.
42%
Share of regular customers
Almost half of our customers return to us again and again – a sign of trust and long-term satisfaction.
5.0
Review on Google
With a perfect 5-star rating on Google, the positive feedback reflects our commitment to quality and service.
- Standard Delivery: Standard delivery is to the curb. For complete furnishing, we deliver directly to the room of use by arrangement.
- Free Shipping: From an order value of CHF 1,500.
- Delivery to Point of Use: Optionally bookable for CHF 199/h (2-person team, from departure Zurich).
- Product Protection: Your delivery will be on pallets. Reusable pallets will be taken back, disposable pallets will not.
- Select your desired delivery service online.
- Provide the delivery address and contact details of a local contact person.
- You will receive a delivery date notification, preferably via SMS or alternatively by email.
- Confirm a suitable delivery date based on availability.
- Ensure you are present on the delivery date and accept the delivery.
- Products already assembled: Many of our products are already assembled, so assembly is only necessary in individual cases.
- Furniture in individual parts: Assembly of products delivered in individual parts is usually very simple (with the exception of meeting pods).
- Assembly service: We offer assembly services through our partner companies for CHF 199.–/h (2-person team, from departure Zurich).
- Meeting pods: Assembly flat rates for meeting pods vary by region.





















