I don't know any details yet, but found this online, a release from Escort at SEMA:
All-new Solo S3 Cordless Portable Radar Detector
ESCORT has long held the lead in portable radar detection and has just announced the release of the all new PASSPORT Solo S3(TM) battery powered portable platform which highlights world class leading radar and laser detection in a cordless model. The new S3(TM) with improved performance, comes in a sleek package that easily travels everywhere you go. This portable model features all-band, 360-degree radar/laser detection, and high-efficiency power management that maximizes battery life, multiple user selectable features, a new high-resolution energy efficient OLED display and is compatible with ESCORT's optional SmartCord.