This radio, measuring under 7 cm in length, fits easily into any pocket. It plays regular FM frequencies, making it useful on walks or for listening to weather forecasts or other programs during outdoor trips. The radio is not water-resistant, so if theres a risk of water or sweat getting into your pocket, its best to slip the radio into a plastic bag, such as a freezer bag. - Basic level plug earphones included - Frequency range: 76 - 109 MHz - Dimensions: 6.8 x 3.1 x 2.4 cm - Weight: 50 g - Power source: 2 x AAA batteries (not included) - Battery life in room temp: approx. 15 h - 5-year warranty The radio relies on the earphone's cabling as an antenna.