Reception frequency: AM 530-1605 kHz, FM 76-108 MHz Power Supply: DC 3V AAA batteries x 2 (sold separately); Battery duration: When using speaker... AM reception: Approx. 60 hours, FM reception: Approx. 58 hours when using earphones: AM reception: Approx. 150 hours, FM reception approximately 145 hours (when using alkaline batteries, medium volume). External dimensions: W x H x D 21mm (Projection). Weight: Approx. 2.5 oz (71 g) (not including batteries); Accessories: Earphones, instruction manual (English language not guaranteed).