RF433 Battery-free Remote Control Wall Switch Self-Powered Wireless Switch for Lighting No Wiring Required Wall Panel Transmitter. DIY Smart Switch RF433Mhz Wireless Remote Control, Self-Powered Panel Transmitter Wall Mounted, Works with Alexa Google Home, Ensures a better user experience of the switch, bringing your smart life much more convenient and fun. Technical data of the switch panel wall transmitter: Operating frequency: 433 MHz. Material: HDPE plastic (type 2). < / p> Coding specification: 1527. Distance: Indoor (20 meters / 65 feet), Outdoor (80 meters / 262 feet). < p> Color: White Dimensions (length / width / height): 86 mm x 86 mm x 13 mm. < p>Weight: 60 g / 2.1 oz. Packing list one receiver with two transmitters together < img src="https:// m.media-amazon.com/images/S/aplus-media/sc/8164d3d9-7d9f-4d86-87d9-10eb410408e8.__CR0,0,1001,1001_PT0_SX300_V1___.jpg" alt="1 "> The package includes different products because you choose another option. Multifunctional switch One