# PhaseSpace > Active LED motion capture systems — sub-millimeter precision, 960 FPS, unique marker IDs, outdoor capable. Built in San Leandro, California. PhaseSpace Inc. designs and manufactures the Impulse X2E active LED motion capture system. Unlike passive reflective systems (Vicon, OptiTrack), each PhaseSpace marker emits a unique modulated signal, eliminating marker swapping and enabling reliable outdoor tracking, ultra-low latency real-time streaming, and ground-truth-quality data for robotics, research, sports biomechanics, and virtual production. ## Pages - [Home](/): Product overview, key advantages, and customer proof. - [Impulse X2E Motion Capture](/solutions): Cameras, markers, and system architecture. - [Use Cases](/use-cases): Robotics, health & science research, sports & rehabilitation, virtual production. - [Resources](/resources): Technical deep dives on active LED tracking. - [Pricing](/pricing): The most affordable high-framerate, high-resolution motion capture. Complete 2-camera Impulse X2E systems start at $9,000 (includes server, hub, and one 8-LED module); each additional camera is $2,000. - [FAQs](/faqs): Active vs passive capture, comparisons to Vicon and OptiTrack. - [About PhaseSpace](/about): Company background and technology history. - [Global Resellers](/resellers): Authorized distributors by region. - [Contact](/contact): Sales, support, press, and headquarters. ## Resources - [The Ground Truth Bottleneck in Advanced Robotics](/resources/ground-truth-robotics-bottleneck): Why robotics needs sub-millimeter active tracking. - [The End of Marker Swapping: Amplitude Modulation](/resources/amplitude-modulation-marker-swapping): How unique LED IDs eliminate tracking loss. - [Ultra-Low Latency Motion Capture at 960 FPS](/resources/ultra-low-latency-motion-tracking): The architecture behind real-time control loops. - [How to Choose Drone Motion Capture Cameras](/resources/drone-motion-capture-cameras): Frame rate, latency, tracking volume, and active vs. passive tradeoffs for aerial tracking. - [Choosing Cameras for Fast Industrial Motion](/resources/industrial-motion-capture-cameras): Buyer's guide covering frame rate (200–960 Hz), sub-10 ms latency, hardware synchronization, 0.1–0.5 mm precision, active vs. passive markers, camera counts, and ROS/MATLAB/LabVIEW integration for industrial automation experiments.