Rfremote Control Drap System 1. Protection function: operation time 82 sec. 2. Protection design (detect current): meet obstructive (6kg) will stop. while running. 3. Tested to continue open and close 100,000 times. 4. Connect with auto home system. 5. RF Remote range: 30m. 6. Great for living room, office and meeting room. 7. Remote roller blind is available.