FM Radio High Sensitivity MW SW Good Sound Quality Alarm Function Small Radio Rechargeable for Home Travelling Car Item Type: FM Radio Material: ABS Size:Approx. 13.3 x 6.3 x 4.5cm / 5.2 x 2.5 x 1.8in Performance: FM/MW/SW 1-2 Broadcast Reception Noise Limit Sensitivity: FM: Better Than 5μv MW: Better Than 2.5mv/m SW: Better Than 50μv Single Signal Selectivity: Better Than 40dB Maximum Output Power: About 100mW Maximum Current Consumption: About 120mA External Power Supply: 5V External Headphones: D3. 5mm In Camera Speaker: D50mm Frequency Range: FM:87.0-108.0MHz MW: 520-1710KHz SW1: 5.9-9.5MHz SW2: 9.5-18.0MHz Three Power Supply Methods: Powered by Nimh Rechargeable Battery Pack, 3.6V, 320MAH (built in Battery) (back of the Unit),AAA (no. 7) Battery Powered (shipped Without Battery) (bottom of the Machine),Solar Powered Four Charging Methods: Hand Power Generation, External Power Charging, Computer Charging, Solar Charging Weight: Approx. 298g / 10.5oz