Light Wake-Up Clock YABAE MY-09 I'm selling this because I no longer need it, after using it for several months. It provides a refreshing and comfortable wake-up! Quoted from the website below. "Recommended for those who:" Have trouble waking up to alarm sounds, don't want to wake up family members or neighbors in the same room, or those with hearing impairments. The alarm can be switched between "sound" and "light" modes, allowing you to use it according to your needs.