Time Projection - The alarm clock offers the option to display the time on your ceiling or wall with the 90° adjustable projection arm. The darker the room, the better the projection feature will work. 8 Soothing Sleep Sounds - Fall asleep to your choice of 8 different nature sounds. Featured sounds include: Campfire, Thunder, Rain, Ocean, White Noise, Fan, Stream, Rainforest. - All sounds can be made louder or softer, allowing you to create the optimal preference and setting. Dual Alarms with On/Off Bell Indicators - Set two alarm times, set one alarm for weekday and the other for weekend wake times. Clearly see when the alarm is active when the bell icon on the display is visible. Display Dimmer Control - Control the brightness of the LCD clock screen Battery Back Up - (Requires 2 AAA batteries , not included) The Sharp (SPC585BCAMZ) Projection Alarm Clock with Sleep Sounds will project the time on your ceiling, while also giving you the option of soothing sleep sounds to help you fall asleep after. Perfect for background noise, white noise, kids rooms, nursery and anyplace where background noise could be helpful for better sleep. Time Projection - The alarm clock offers the option to display the time on your ceiling or wall with the 90° adjustable projection arm. 8 Soothing Sleep Sounds - Fall asleep to your choice of 8 different nature sounds. Featured sounds include: Campfire, Thunder, Rain, Ocean, White Noise, Fan, Stream, Rainforest.