PROJECTION FUNCTION The station with projection (180 rotation) has 3 adjustable projection lighting modes according to your desired angle and brightness. The red numbers projected on the wall or ceiling are very clear. Easy visibility of time helps avoid sleep disturbance. Optimum throw distance: 2-5m. FM RADIO & DUAL ALARM Clock radio with adjustable volume (0-15), receiving FM 87.5 MHz - 108 MHz frequency range, suitable for most countries. FM radio includes sleep timer function that automatically turns off after a set period (5-90 minutes). Supports two independent alarm times with two alarm sound options (Didi sound and radio), each with adjustable volume. Includes snooze function (5-60 minutes). MULTI-FUNCTION DISPLAY LED display shows time (12/24-hour format), temperature, and humidity (switchable between F and C), helping monitor indoor environment. Four levels of manual and automatic screen brightness settings reduce glare, ideal for elderly users or those with limited vision. The display surface can also function as a mirror, suitable for home or travel use. BATTERY BACKUP & USB CHARGING Mains-powered digital alarm clock with battery backup. The backup battery preserves clock settings during power outages. Equipped with a USB port for charging phones and other devices overnight.