A. Design: The BC - R21 radio uses a unique ABS shell with a special plastic covering on the surface. It adopts a DSP circuit, with good quality and light weight. B. Listening Options: You can listen through the built - in speaker, or connect headphones or earplugs via the standard 3.5 - millimeter headphone jack (headphones not included). C. Convenient Features: This FM/AM mini radio is equipped with a telescopic antenna that can be extended up to 11 units for receiving radio stations with weak signals. It also comes with a wrist strap to prevent the radio from dropping and can be hung anywhere. D. Frequency Range: FM: 88 - 108 MHz, AM: 530 - 1600 KHz. It has an easy - to - operate tuning function and an integrated rotary power and volume control. There is a separate FM/AM band selection switch for listening to preferred radio stations. E. Portability: This compact radio has dimensions of only 95 * 58 * 22 millimeters. It is smaller than most smartphones and can be put into pockets, handbags, etc. Model: BC - R21. F. Frequency: FM: 88 - 108; AM: 53 - 160 G. Power Supply: 2 AA (size 5) batteries (batteries not included) H. Speaker: Built - in I. Package Contents: 1 mini radio