Voltage of FM Radio: USB: DC 5V 1.5W of output power 5W302.5-inch speaker Weight net: 0.563 kg Size of unit: 179 x 100 x 145 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