- Operates on radio frequency - will perform through walls、 doors and floors up to about 50 m away、 no line of sight needed<br />- Remote & manual operation<br />- Comes with one 12V battery for the remote<br />- Use this remote control switch to control any lamps or small appliance after easy installation<br />- Input: AC 200V - 240V<br />- For the indoor use only<br />                                                                                                                                Dimensions: 3.35 in x 3.35 in x 1.5 in<br />Weight: 6.63 oz