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 30A receiver longdistance remote Model Number: 2201H+KT05 Current: 30A Switch Type: Remote control Remote Distance: 50meters Controller Working Voltage: AC 220V Controller size: 2.6 x 2.3 x 1.2 inch Controller Weight: 0.15 lb Max current: 30A Controller Terminal: L Remote control weight: 0.07 lb RF frequency: 433MHz Receiving Sensitivity: more than 97dbm Working temperature: -30 - +80 degrees Amount of storage remote controls: about 25 pieces Quiescent Current: less than 5mA Modulation Mode: ASK superheterodyne wireless reception Remote operating mode: Momentary / Toggle/ Latched Mode Application: Family, Farm, Factory, Office, Supermarket colour:Black Material:plastic size:66 x 44mm Package Contents: 1 x Remote Control Switch 1 x ON/OFF remote control Only the above package content, other products are not included. Note: Light 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.