Magho Battery Operated Silent Non-ticking Indoor Wall Clock with Temperature & Humidity ,Glass Cover,Silver Color(Aluminum Metal Frame, 10') Large Numbers,Contrasty Clock Face and Glass Front Cover Guarantee Good View. Super Quality Quartz Sweep Movement Guarantees Accurate Time and Absolutely Silent Environment,Suitable for Bedroom,Meeting Room and Any Other Places Which Needs a Silent Environment. With Analog Thermometer & Hygrometer;Not Quite So Accurate like Professional Thermomter or Hygrometer, but in Accurate Range. 1 AA Battery Operated (Battery Not Included),Average Battery can Last More Than 1 year; Please Use Normal Carbon battery, Instead of Heavy Duty Batteries. Back Nail Slot Supplies Easy Installation, with Drywall Hanger.