Sony ZS-E5L. RMS rated power: 2 W. Loudspeaker diameter: 50 mm. FM band range: 87.5 - 108 MHz, AM band range: 530 - 1710 kHz, Supported radio bands: FM, AM. Battery type: R14. Weight: 2.2 kg, Dimensions (WxDxH): 271 x 271 x 122 mm