Item Type: Smart Curtain Opener Model: M727EGB Material: PC Rated Torsion: 0.8Nm Rated Power: 13W Maximum Load: 3KG Operating Noise: 40dB Protection Level: IP20 Working Temperature: -20~65 Operating Speed: 70RPM Motor Power Supply: 1 x 3.7V 5200MAH lithium ion battery, shipped with built in battery. Remote Control Power Supply: 2 x AAA battery, shipped without battery. Package List 2 x Curtain Motor 1 x Remote Control 1 x WiFi Converter 1 x Remote Control Bracket 2 x Draw String 1 x USB Cable 1Intelligent Voice Control: Connect to the hub for voice and remote control, the hub is not included. It is compatible with various voice controller, and remote control allows you to control the opening and closing of curtains at any time and anywhere to prevent furniture from being damaged by exposure. 2Multiple Control Methods: Use for iOS or for Android application to open or close curtains at your fingertips. You can also remotely view and control through the application to help prevent home theft during travel. 3Low Noise Design: Permanent magnet DC motor, operating sound as low as 40dB, light running, low consumption and energy saving, good central processing unit, with helical gear bass noise reduction and a service life of up to 15 years. 4Simpler Installation: The curtain motor can be directly hung on the curtain guide rail without the need for tools, with a built in 52000mAh rechargeable battery, without the need for complex wiring, making your convenience more tidy and beautiful. 5Compatible with Popular Smart Home Systems: This product is compatible for Alexa, for Google Assistant, and for Tuya. Seamlessly integrate your curtains into your smart home ecosystem, allowing you to control them through voice commands or automate them with other smart devices in your home.