Built-in Battery Rechargeable WiFi / Zigbee Φ15mm Smart Shutter Motor for Φ17mm/Φ20mm/Φ25mm/Φ28mm Tube DC 12V Φ18mm Solar Shutter Motor,Built-in Lithium Battery,Remote Control Blinds Motor GM18-12V Li-ion Battery 18mm Blinds Motor Remote Control Roller Shutter Motors
