DP666 portable fullband radio TEF6686 chip excellence: Engineered with the TEF6686 chip to deliver sensitivity across FM, AM, and shortwave bands with signal selectivity and audio quality. Advanced DSP tuner features: Rich functions and algorithms including CEQ, EMS, iMS, and PACS help the receiver handle multipath and adjacentchannel interference, improve weaksignal reception, and reduce noise for clearer listening. Built on the PE5PVB project and TEF6686_ESP32 foundation: The DP666, based on the TEF6686_ESP32 project, supports features beyond simple station listening such as RDS display, auto/manual scans, squelch, battery voltage display, and themes for an enhanced experience. Userfriendly LCD interface: A redesigned circuit and a 2.8inch resistive touch screen allow convenient viewing of critical RDS information while maintaining a compact form factor. Practical portability and usability: Designed for portable use with fullband coverage and enhanced by DSP processing, making it suitable for everyday listening, travel, and field scenarios. 23 use scenarios Everyday listening at home or on the go: Enjoy clear AM/FM and shortwave reception with RDS information displayed, easy station scanning, and appearance for comfortable longterm use. Outdoor, travel, or field use: Take advantage of improved weaksignal handling and noise reduction in challenging environments, with auto/manual scans to quickly locate stations and stay informed. Emergency preparedness or backup listening: Monitor battery voltage display to manage power usage, use squelch to suppress noise, and rely on reliable DSP performance to maintain reception during outages or lowsignal conditions.