Product Description Size: 180 * 46 * 91MM Can store 15 radio channels0~~10 level volume adjustment5. 8 Inch Large Screen LED Display FM: 76.0-108.0 MHz Working Voltage: 5V USB Output Interface: 5V 1A Scope of Delivery: 1 x Digital FM Projection Alarm Clock 1 x USB Cable 1. 180 ROTATING PROJECTOR 180 FLIP PROJECTION DISPLAY The projector (-90 to 90 ) can be rotated for projection in the desired direction on the ceiling or wall. Long press the "Projection" button to rotate the projection display 180 degrees. Optimal projection distance for the projection alarm clock 5 m.2. 0-100% ADJUSTABLE DIMMER Digital alarm clock with practical dimmer control allows the brightness of the display to be set from 0-100% (dark to bright). Ultra clear, large 8" LED screen is very easy to read and can be seen without glasses. Also ideal for seniors and nearsighted people. 3. 2 ALARMS 5 ALARM TONES 3 VOLUME SNOOZE The projection clock can easily be set to two separate alarms so that you and your partner can get up at different times depending on the daily routine. 4. FM RADIO Clocks with projection can store up to 30 FM stations. The 33" antenna can be extended for better signal reception. You can fall asleep comfortably while listening to radio. The radio turns off automatically after the set time (between 5 and 90 minutes) has passed. 5. USB STORAGE FUNCTION on the back of the digital alarm clock. The projection alarm clock is powered by the standard USB port ONLY CHARGING CABLE ADAPTER included).The built-in button cell CR2032 in the projection clock is used to keep the time and alarm settings during a power .