FAQ
Frequently Asked Questions
Can I get a refund?
Yes. We offer two return options. Our standard 14-day return window from delivery includes a 10-15% restocking fee, which we waive if your Crown remains sealed. Our 90-Day Conditional Guarantee provides a full refund if you complete 30 focus sessions and aren't satisfied with your experience. All returns must include original accessories and packaging. We don't refund shipping or import fees. Refunds process within 14 business days.
Is the Crown safe to use?
Yes. The Neurosity Crown is a non-invasive brain-computer interface that uses EEG technology with electrodes that rest comfortably on your scalp. It's designed as a general wellness product to maintain and encourage overall health.
What warranty and repair options are available?
The Crown includes a limited warranty covering defects in materials and workmanship. All customers receive one free repair per year for minor issues like hinge or battery repairs. If your device is beyond repair or suffers water damage, you can replace it anytime for $299. Lost or stolen devices can be replaced for $299 once every two years. Contact support@neurosity.co for assistance.
How long does it take to see results?
Results vary by individual. The Crown uses neurofeedback to help train your brain over time by detecting brain wave patterns and providing real-time feedback. Your experience depends on factors like consistent training, proper electrode placement, and signal quality. Some users notice improvements within their first few sessions, while others may take longer to see meaningful changes as their brain adapts to the neurofeedback training.
What's the science behind the Crown?
The Crown uses electroencephalogram (EEG) technology to capture and process high-fidelity brainwave data in real-time. Our third-generation brain-computer interface features dry-contact electrodes and embedded computing that translates neural activity into actionable insights through on-device signal processing. The Crown leverages neurofeedback—providing real-time feedback on your brain activity to help you optimize focus and calm states. For an in-depth look at our EEG signal processing, embedded computing technology, and BCI development methodology, download our free white paper at neurosity.co/blog/access-neurositys-free-white-paper.
How is the battery life?
The Crown features a 3-hour rechargeable lithium-ion battery with a 30-minute fast charging time. For optimal battery performance, use the travel case when transporting your device and follow proper storage guidelines when not in use.
What are the technical specifications?
The Crown features 8-channel EEG with sensor locations at CP3, C3, F5, PO3, PO4, F6, C4, and CP4, covering all lobes of the brain. It samples at 256Hz and includes an on-board N3 chipset for processing, 2 haptic motors for feedback, a motion-detecting accelerometer, NFC for device claiming, and Bluetooth connectivity. The Crown weighs 250 grams (0.55 lbs) with a one-size-fits-all adjustable design and flexible electrodes designed to last approximately 800 uses.
Is the Crown comfortable to wear?
Yes. The Crown features a lightweight design at 250 grams (0.55 lbs) with flexible, malleable electrodes that accommodate different head sizes and hair types. The one-size-fits-all design includes adjustments for various head sizes, and we offer different electrode types to ensure optimal scalp contact for different hair lengths and textures, including flat electrodes for very short to no hair. The ergonomic design allows for comfortable extended wear throughout your day.
How do I set up and use the Crown?
Setting up is straightforward. Log into the Neurosity App, select Crown as your device, and ensure it's powered on. Claim your Crown using NFC, Bluetooth, or by scanning the QR code on your box. Before first use, select the appropriate electrode type for your hair. Ensure the device fits snugly with electrodes making proper scalp contact. The app guides you through calibration and training sessions to learn your brain patterns for accurate focus tracking.
How does it compare to other EEG headsets?
The Crown features 8-channel EEG—the highest channel count among consumer brain-computer interfaces—providing exceptional data fidelity. It offers productivity-focused features, developer access through an open SDK, and hardware-level security with on-device processing. The Crown is the first and only EEG device that integrates natively with AI apps like Claude and ChatGPT.
What makes it different from other neurofeedback devices?
The Crown prioritizes your privacy with hardware-level security—your raw brainwaves are processed on-device and never leave the Crown. It's designed specifically for productivity enhancement and achieving flow states, providing real-time feedback on your focus and calm levels throughout your day. The Crown is the first EEG device with authentication, authorization, and data encryption embedded directly into the hardware, giving you complete control over your brain data while helping you optimize your mental performance.
What developer tools and APIs are available?
The Crown provides comprehensive developer access through official SDKs for JavaScript (Web browsers and Node.js) and Python (beta), with all source code open-sourced on GitHub. The API provides access to raw EEG data at 256Hz, frequency data (FFT), power spectral density, signal quality, accelerometer data, and computed metrics including calm, focus, and kinesis. You can integrate with third-party tools like BrainFlow and Lab Streaming Layer (LSL). We offer a 4-week developer course, comprehensive documentation at docs.neurosity.co, a developer console for visualization and training, and an active Discord community for support.
Is my brain data private and secure?
Yes. The Crown features hardware-level security built into the N3 chipset, ensuring no third party can access your raw brain data. All processing happens on-device—your brainwaves are analyzed locally and never stored or transmitted outside the applications you grant access to. We use end-to-end encryption for all data transmission. When you claim your Crown, only you can access your brainwave data via Bluetooth or Wi-Fi. With third-party apps, only metrics you explicitly grant permission to are accessible, giving you complete control over your neural data.
How often do electrodes need replacement and what's the cost?
The Crown's electrodes are designed to last approximately 800 uses. You'll know it's time to replace them when the tips start to look black on most brushes. Replacement is simple: hold the electrode with your fingers and snap it out — then place and push the new one in.
What customer service and support is available?
We provide customer support via email at support@neurosity.co. You'll find comprehensive documentation at our support center: https://support.neurosity.co. For developer documentation, please refer to https://docs.neurosity.co/. We also offer a Discord community for developer-related questions and peer support where you can connect with other Crown users.
What platforms and apps does it work with?
The Crown is compatible with all major platforms and includes native mobile apps for iOS and Android that allows you to play NeuroAdaptive audio for focus and clam and guided meditation. The Neurosity Music beta app integrates with Spotify to recommend music based on your brain activity. For developers and researchers, the SDK works across Windows, Mac, and Linux for accessing all the data the Crown has to offer, and for building custom applications. The device supports integration with third-party platforms through our open API, including ChatGPT and Claude integration.
Does it integrate with ChatGPT and Claude?
Yes. You can add the Neurosity connector (MCP server) to Claude and ChatGPT. With this integration in place, you can ask your favorite LLM things like: "What type of music can boost my current focus score?" or "Compare my focus and calm scores and recommend some lifestyle changes". With today's AI capabilities and state-of-the-art neurotechnology, the possibilities are endless. You can use the Neurosity MCP server today for free with the Crown.
I'm not a developer, is the Crown for me?
Absolutely. The Crown comes with consumer-ready mobile apps for iOS and Android that track your focus without any coding knowledge required. The Neurosity Music app integrates with Spotify to recommend focus-enhancing music based on your brain activity. Simply wear the device, complete the guided training sessions in the app, and leverage the pre-built focus tracking features—the app make it easy to monitor your progress over time.
How accurate is the Kinesis API?
The Kinesis is an experimental API that uses a method called Motor Imagery. This method requires training and is able to detect basic motor-based intentions. You'll have access to train multiple commands but can only use one at a time. These commands can be mapped to different interactions. We've had decent success with interactions such as scroll up/down, changing to next/previous slide, and turning a light on/off. Lag and accuracy are areas we are working to improve.