Features: Each receiving controller supports multiple remote controls. High confidentiality, storage capacity, stable performance, and low power consumption. Remote and manual control are fully compatible. Simple and convenient operation. Specifications: Operating temperature: -10°C to +50°C. Operating voltage: AC220V ±10%, 50-60Hz. Transmission distance: 50-100m. Operating frequency: 315 MHz. Load power: Less than 500W. Compatible with projection screens, electric curtains, electrical towers, garage doors, extensible doors, and similar devices. Color: White. Material: ABS. Dimensions: Receiver: 5 x 8cm; Remote control: 4.3 x 12.5cm. Package Contents: 1 x Receiver Controller, 1 x Remote Control. Note: Lighting and display differences may cause slight color variations between the image and the actual product. Measurement error allowance is +/- 1-3cm.