Denver CRLB-400 features a radio alarm clock with Bluetooth, alarm light, and mood light. It includes Bluetooth functionality for music streaming and wireless calls, as well as a MicroSD card slot for direct MP3 files. The alarm clock allows you to wake up by radio or beeper and has an FM scan radio. It features an LED display with a dimmer and two 3W stereo speakers. The soft alarm light activates 30 minutes before the actual alarm time, and there is a sunset simulation for the sleep timer. The mood light function adds ambiance, and it has a built-in rechargeable battery of 600mAh. The dimensions are 16.8 x 16.8 x 10 cm, and it weighs 630 g. The color is white.