... ; * Built-in 87.5 – 108 MHz FM digital radio module; automatically store 50 radio stations, high sensitivity telescopic antenna installed. * Built-in ... W digital amplifier; output distortion rate: 0.5% max; signal noise ratio: 80dB; * Built-in 2 x 2W 8Ω, Ø32 MM ... memory storage chip , while power off, to memorize songs , volume , radio stations , function and setup you store previously; Never lose what ...