1. High power controller, can be used in many places 2. High quality shell, Flame retardant 3. Remote Has keychains, easy to hold 4. Small Size,soft contact, small but not simple Name: 433Mhz RF 10A receiver longdistance remote Switch Type: Remote control Controller Working Voltage: AC90-220V RF frequency: 433MHz Remote operating mode: Momentary / Toggle/ Latched Mode Application: Family, Farm, Factory, Office, Supermarket color:Black Material:plastic Package Contents: 1 x Remote Control Switch 2 x remote control Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.