Input voltage: 100-250v 50 / 60Hz Maximum load: 16A 3680W USB??5V/4.0A 20W Main material: PC Wi Fi standard: 2.4GHz 802.11b/g/n Support system: Android / IOS Size: 265 * 66 * 40MM Line length: 1.5 square meters, 1.5 meters Certification: CE RoHS Control mode: sub control, USB master control 1. AI intelligent voice control (compatible with tmall elf, Xiaoai, Amazon voice, Google Voice and ifttt) 2. App remote operation power off 3. Power off the socket regularly 4. Timing / countdown function 5. Bring your own child safety door to protect the safety of your family 6. Lightning protection and surge protection 7. Overload protection and fire prevention