Features: 1. Durable spiral rod to drive. It can afford to open and close continuous over 950,000 times. 2. One button operation for rotating and traversing. 3. All blinds to tilt at 90 degree when it opening or closing. 3. Opening Direction: One way draw or center opening 4. Overload protection. 5. Single & Multi channel transmitter. 6. Integrate with Auto home system. 7. Easy installation and setup, design and develop under DIY concept. Technical Data: * Remote range: 30m * Rated Voltage: DC 24V * Radio Frequency: 433.92 MHz * Load Capacity: 30kg * Max. Length: 5.4m * Memory Capacity: 30 transmitters * Power Supply: AC110-240V Switch Power .