DP666 overview sensitivity radio based on NXP TEF6686 automotivegrade frontend, delivering selectivity and ultra sensitivity. It uses SDR (softwaredefined radio) signal processing and advanced algorithms to improve multipath, adjacent frequency interference, and weaksignal performance. It is built on the PE5PVB open source TEF6686_ESP32 project. Key features and benefits 2.8inch LCD color screen with resistive touch Provides a compact, portable display that shows rich RDS information (RDS display requires local radio support) and enables easy navigation. A numeric keypad is included for quick, precise frequency input. Designed to balance portability with a clear, informative user interface. Longlasting portable power Largecapacity 5000 mAh battery supports longer standby and extended listening sessions without frequent recharging. Combined hardware and software capability Frontend receiver built on a performance automotivegrade TEF6686 chip for reliable reception across a broad frequency range. SDR signal processing with advanced noise reduction and interference handling to improve reception in challenging environments. Broad feature set from open source TEF6686_ESP32 project RDS data display (almost all available RDS data formats) Automatic and manual station scanning Squelch control Battery voltage display Changeable themes and multilingual support Station presets and more Use scenarios Road trips or daily commute Enjoy clear radio reception with strong RDS information, simple frequency input via the keypad, and long listening time thanks to the 5000 mAh battery. Outdoor or field use Portable and adaptable for environments with variable signal quality, where SDR processing and advanced interference suppression help maintain reliable reception. DIY and opensource enthusiasts Built on the TEF6686_ESP32 project, allowing users to explore almost all RDS data, themes and languages, and manage station presets, providing a platform for further experimentation and .