Grundig Sonoclock 390, Clock, Digital, AM, FM, MW, 0.4 W, LED, Black, Silver Grundig Sonoclock 390. Radio type: Clock, Tuner type: Digital, Supported radio bands: AM, FM, MW. RMS rated power: 0.4 W. Display type: LED. Product color: Black, Silver, Volume control: Rotary. Battery voltage: 9 V