Loud metal twin bell alarm soundMetal hands including secondhandGold polished metal case A classical bedside clock with twin bells for a loud alarm to wake even the soundest sleepers. Durable, metal framework surrounds a white dial and black metal hands. An added bonus of luminous hands and hour dots and a red secondhand to view alarm time. No batteries required.Loud Twin Bell AlarmGlass lens and metal hour and minute handsRuns up to 24 hours; Keywound operation (no battery)Plastic secondhand and red alarm hands85 dbs (decibels)