The Christmas wreath is 45 cm in diameter. The Sirius light wreath is approved for outdoor use, but can the can of course also be used indoors. Like most Sirius products, The Anton can be operated with the Sirius remote control. The remote is not included in this product but can be purchased. Anton has a diameter of 45 cm.Anton uses 2 x AA batteries. They are not included. Anton is IP20 approved.