Voltage of FM Radio: AC: 60Hz/50Hz, 110V-220V DC: 6V (UM-3x4) 1.5W of output power Speaker size: 3W403 in. Weight net: 0.648 kg Size of unit: 180 x 85 x 125 mm Rate of noise: greater than 36 dB Receivable Performance Indicator: Frequency of reception: FM: 87-108 MHz Index of sensitivity: FM: 15dB + 5dB FM noise level: 45 dB