The radio series is a line of battery-powered portable, pocket AM/FM radios. They come with a standard 1/8" (3.5 mm) headphone jack as well as an integrated speaker. In addition, the R series sports an adjustable antenna for reception maximization as well as a carry strap for easy transportation. The R22 and R60 run on Rechargeable battery or three AA batteries. Features: This mini radio by Technical Pro is the ultimate radio for anyone on the go. Featuring a compact design, battery power, and a built-in speaker, the BC series is ready to follow you anywhere from hikes to trips to the beach. Built-in speaker for high quality sound wherever you go Adjustable volume Headphones port Telescopic antenna for enhanced sound AM/FM high-performance receiver Manual tuning knob Rechargeable battery included Requires three AA batteries (Battery not Included) Wrist strap for easy carrying Durable design Frequency range: FM 88-108 MHz, AM 530-1600 Khz Output: 50mW Sensitivity: FM 20 V, AM 6.5mV/m Dimensions: 2.32 x .98 x 3.98