HITO153; 4" Silent Quartz Analog Twin Bell Alarm Clock with Separate Dial for Alarm, Much Easier to Turn off Alarm, Nightlight and Super Loud Alarm Shell material: high quality cold rolled steel. Electroplating guarantees colors keep shinning and bright. Silent, non ticking to ensure a good sleep and best working environment. Separate dial for alarm (accurate to 10-minute). Much Easier to turn off alarm. Super loud alarm for heavy sleepers. Nightlight is perfect at night. Simply press the white nightlight button when staying in bed. User-friendly: Two knobs are hidden inside battery slot cover. Notice: the two knobs to set time and alarm are designed that way. Please don't mistake this special design for the sign that they're broken or of poor quality.