Selling Point: [No Gateway Required]You don't need to buy a Hub for this device, which connects to your house's WiFi. But a strong WiFi signal is a must for this device, try connecting your phone to the WiFi next to the engine, if it works, the device will work, otherwise look for a WiFi signal repeater. [Wifi+Bluetooth Dual Mode]Connect to faster. Connecting to the Internet is 2 times faster than Wifi only [APP remote control] Control the device anytime, anywhere through the mobile phone APP. [Intelligent linkage] In the intelligent scene mode, linkage can be set to send out an alarm sound. The mobile APP will also receive notifications. Such as garage door open/close status, timeout notification and overnight notification to remind you to close the garage door. [Voice Control]Use with for and Home, Yandex, Tmall Genie. Make your garage door smart so you can open or close it even when you're not there. Specification Voltage: 100-250VAC, 50/60Hz WiFi standard: 2.4GHZ 802.11b/g Cable