Dekala WishAlarm- How to set clock and display brightness ?

www.amazon.com/dp/B0D48HLR5P
Dekala Digital Alarm Clocks for Bedrooms, Loud Alarm Clock for Heavy Sleepers, Temperature & Humidity Detect, Dual Alarms Weekday/Weekend Mode, Large Display Auto Dimmer, 9 Ringtones, Modern
1.High-Sensitivity TEMP and RH Detection: Easily manage your heating, cooling, and humidification systems to optimize air quality with readings from -4 to 140°F and 1% to 99% RH. Dekala digital clock helps to stay comfortable and healthy. Must be plugged in to us all functions
2.Extra Loud 100dB Alarm: Dekala loud alarm clock features 10 adjustable volume levels from 65 to 100 dB, ensuring it wakes heavy sleepers. Choose from 9 soothing natural tones to start your day perfectly
3.Dual Alarm with Snooze: Dekala alarm clocks for bedrooms allow you to set separate alarms for weekdays and weekends. Enjoy easy snoozing with the one-tap snooze, offering an extra 9 minutes of sleep, up to 5 times
4.Large Time Display with Dimmer: View the time easily with large 1.6-inch digits on a 7.08* 3.5* 1.29-inch screen. Dekala desk led clock features adjustable brightness settings-Auto, Day, Night, Off-to enhance visibility and comfort around the clock
5.Sleep Companion Sound Machine: This bedside alarm clock for kids offers 9 sleep sounds and an auto-off timer from 5 to 120 minutes or plays all night. Perfect for relaxation and a serene sleep environment. Ideal gifts for kids adults seniors boys girls