Electric Digital Alarm Clock with Full Range Dimmer for Bedroom: 4 Inches large LCD screen with eye easy catch blue number display, time and clock display are easy to read at a glance. 100%-0% completely adjustable display brightness for comfortable viewing. 12 or 24hr switch, Indoor temperature ( or ) Display. FM Radio ONLY with Sleep Timer: Easy tuning in FM radio channel with 0-15 level volume adjustable. Speaker is loud and clear. Benefit sleep timer function lets you fall sleep to the radio by preset the radio to play for a certain amount time (10-120 minutes optional). USB Charging Port: Extra USB port allow you to charge your smartphone or other smart device without plug in wall, a handy, convenient and organized bedroom alarm clock radio. Adjustable Alarm Sound and Snooze: Wake up to buzzer or radio should your preference. Both alarm sound volume can be adjusted to your comfortable level. (buzzer: 3 level, radio: 1-15 level). The alarm will begin sound faintly then i