As modern smartphones become increasingly difficult to put down, Cologne-based designer and maker Kevin Noki has taken a rather unconventional approach to digital detox by building a handset that looks straight out of the 1980s. Named the ADHD ONE—short for Anti Distraction Handset Device—the project revisits the oversized brick phones of early mobile communication, complete with a physical keypad, a compact display, and an unmistakably chunky silhouette. Unlike most contemporary personal technology devices, however, its purpose is to offer fewer features rather than more, targeting the constant temptation of endless scrolling and digital notifications.
The concept behind the ADHD ONE is relatively straightforward for anyone struggling to manage their screen time. Instead of replacing a smartphone entirely, the 3D-printed device connects to an iPhone via Bluetooth, allowing users to receive and answer phone calls while keeping the original, highly distracting device completely out of sight. By configuring the primary smartphone’s Do Not Disturb settings to permit incoming calls exclusively from selected, essential contacts, Noki has created a more controlled and intentional communication experience.
The handset operates without any independent cellular connection of its own, relying entirely on the paired smartphone to function properly in the background. In practice, this mechanical and digital setup preserves one of the telephone’s most basic historical purposes—talking to another person—without inviting its owner into another endless round of social media browsing, app checking, and notification fatigue. It serves as a physical barrier between the user and the digital abyss, forcing a conscious separation from the pocket-sized supercomputers that dominate contemporary daily life.
Despite its deliberately outdated and nostalgic appearance, the ADHD ONE relies firmly on contemporary electronics and modern micro-manufacturing techniques. At the core of the hardware is an FSC-BT1026C Bluetooth module based on Qualcomm’s QCC3024 chip. This component utilizes the Hands-Free Profile, commonly known as HFP, to cleanly transmit call audio between the retro handset and the connected iPhone. Meanwhile, a Raspberry Pi Pico development board manages the device’s internal functions, ensuring reliable operation of its software and hardware components.
Additional electronic elements integrated into the build include a crisp OLED display for basic visual feedback, a dedicated microphone for voice transmission, a built-in speaker for audio output, a rechargeable lithium battery, and a dedicated charging controller to manage power supply. A custom-designed printed circuit board brings all of these diverse electronics together neatly inside the compact, retro-styled housing.
Kevin Noki designed the physical enclosure using Autodesk Fusion before producing its structural components through 3D printing. The housing draws heavily on the iconic visual language of early mobile phones from the 1980s and 1990s, featuring substantial proportions, a prominent structural antenna, and tactile, physical buttons that completely replace the sleek, smooth glass surfaces of contemporary smartphones. The design incorporates a 19-key physical keypad and offers several distinct possibilities for visual and functional customization. Users can choose among three different speaker grille styles—categorized as Classic, Holes, and Stripes—as well as three distinct antenna designs, namely Retro, Slim, and Screw. An alternative housing option even eliminates the external antenna entirely, though purists might argue that removing the iconic appendage takes away some of the vintage brick phone’s intrinsic charm and historical character.
For makers and tech enthusiasts interested in building their own version of the anti-distraction device, Noki has made the digital construction files widely available through his personal website. The comprehensive downloadable package includes 3D-printable STL files for the outer housing, the back panels, the internal mounting frame, the display cover, the battery holder, and the physical keypad. Along with these structural files, the package supplies ready-to-flash firmware packaged in the UF2 format.
Furthermore, Gerber files and drill files are provided to allow users to independently order the custom printed circuit board from a specialized manufacturer. A detailed bill of materials and a quick start guide round out the offering, providing the necessary references for sourcing the required electronic components and successfully assembling the device at home. The digital package does not include physical parts, editable computer-aided design or printed circuit board files, or the source code for the firmware, and it is strictly licensed for personal, non-commercial use only. A separate physical do-it-yourself kit has also been listed on the designer’s website, though it remains unavailable for immediate purchase.
Ultimately, the ADHD ONE occupies a fascinating intersection between design nostalgia, experimental product engineering, and the growing cultural desire for simpler, less intrusive digital experiences. It does not attempt to eliminate the modern smartphone completely, as the primary device must still remain within active Bluetooth range, nor does it attempt to recreate the standalone cellular independence of an authentic 1980s mobile phone. Instead, it radically rethinks how human beings physically interact with technology they already own, turning a familiar communication function into a deliberately restricted and mindful experience. There is a distinct layer of irony in designing, 3D printing, and assembling an entirely new electronic hardware device simply to avoid using another, more powerful one. Then again, for a growing segment of technology users seeking relief from constant connectivity, that paradox is precisely the point.
