Multiple control methods including: remote, wall switch, smart phone, Amazon Alexa, Echo, Google Home, and other home automation systems. Set timers for opening and closing via smart phone app. Durable, heavy duty, quiet smart curtain rod. Easy assembly, DIY length by customization(Max.leight:3M. Included: 1000cm rails*2pcs+50cm rail*1pcs+20cm rail*2pcs+10cm rail*1pcs). Three installation choices: central, left, and right opening. Smart motor can remember curtain position and distance settings. Light touch trigger: manually pulling the curtain can trigger the motor to operate automatically. Manual operation available when power is off. Universal Wild Voltage Compatible: 100-230V 50/60Hz 40w (CN standard plug