This wifi smart opener runs on 5-24V DC power supply, and it is compatible with most electric door system. Connect to your smart phone to remote control garage door, check real-time status, and history records of when the door was opened. Specifications: Material: PC V0 Fireproof #43; Tempered Glass Panel Color: Black Wide range Power supply: DC 5-24V Wireless standard: 802.11 b/g/n Security mechanism: WPA-PSK/WPA2-PSK WIFI remote control: turn on/off the door from anywhere App Support: Free iOS and Android Phone Apps (Ewelink) Voice Control: with Amazon Alexa, Google Home Voice Control Synchronization status: real-time status provided on the APP Timing function: Set the reservation/countdown timer to turn on/off at specified time App name: Ewelink Item Size: 66.6 * 35 * 12.62mm / 2.62 * 1.37 * 0.49in Item Weight: 98g / 3.45oz Package Weight: 135g / 4.76oz Package Size: 10 * 10 * 5cm / 3.93 * 3.93 * 1.96in Packing List: 1 * WiFi Smart Opener 1 * Door Sensor 4 * Screws 3 * Stickers 1 * User Manual