Edifier STAX Spirit S3 Wireless Planar Magnetic Over-Ear Headphones — Black (Restored / Refurbished)

Hi-Res certified performance: Enjoy cleaner sound, higher resolution, and improved imaging comparable to professional recordings thanks to a proprietary audio system. The frequency response spans an ultra-wide 10Hz to 40kHz. When your mobile device supports Snapdragon Sound, connect over Bluetooth for premium-quality playback; if it does not, use the Aux-in cable to achieve the same audio experience. Planar magnetic technology: Built with planar magnetic drivers for audiophile-grade, cinematic sound. These drivers combine the advantages of dynamic and balanced armature designs — offering stronger low-frequency performance than electrostatic headphones (closer to dynamic driver bass response) while delivering excellent high-frequency detail like balanced armature drivers. Clear calls and low latency: A Qualcomm QCC5141 chipset integrates Snapdragon Sound features to provide ultra-low latency and very clear voice quality, making phone conversations feel nearly face-to-face. App control and modes: The Edifier Connect App unlocks the classic STAX sound signature, low-latency game modes, expanded EQ customization, and additional functions for tailored listening. All-day comfort and durability: Lightweight construction uses durable carbon-fiber materials, full foldable hinges, hand-crafted earpads, and a headband wrapped in genuine lamb leather for extended comfort. Battery life reaches up to 80 hours of playback. An extra cooling-mesh earpad is included for travel and hotter listening conditions.