Escort Solo S3 Cordless Radar Detector Radar Receiver/Detector Type: Super heterodyne, GaAs FET VCO; Scanning Frequency Discriminator; Digital Signal Processing (DSP) Laser Detector: Quantum Limited Video Receiver; Multiple Laser Sensor Diodes Display Type: High-Resolution Graphic; OLED Display Power Requirement: 2 AA Batteries, or Escort SmartCord (Optional) Programmable Features: SOLO S3 packs 9-user programmable features, allowing you to customize it for your specific driving style Digital Signal Processing (DSP); 4-bit Analog-Digital Converter Radar Receiver/Detector Type: 4-bit Analog-Digital Converter Radar Receiver/Detector Type: Super heterodyne, GaAs FET VCO; Scanning Frequency Discriminator;