Push button with LED indicator base for comfort and premium kits._x000D_Installation type Button: surface mounting with screws or adhesive tape._x000D_Frequency band: 433.05 - 434.79 MHz_x000D_RF power level: < 10 mW_x000D_Range about 100 m in free field_x000D_Push-button bell protection rating: IP 44_x000D_Color white_x000D_Power supply 1 CR2032 battery