Features: 1. Gently and continuously fold drapery from the beginning to the end. 2. Spiral rod or belt to drive. 3. Over loading protection. 4. Easy to install ceiling or wall mount brackets. 5. Designed with reliability and safety - 24V DC transformer. 6. Opening Direction: One way draw or center opening. 7. Single & Multi channel transmitter. 8. Integrate with Auto home system. 9. Easy to follow DIY installation instructions. Technical Data: * Rated Voltage: DC 24V * Power supply : AC110-240V Switch Power * Radio Frequency: 433.92MHz * Load Capacity: 30kg * Max. Length: 5.4cm * Memory Capacity: 30 transmitters * Spacer: 54mm & 79mm