1. SONOFF ZB Bridge-P Smart Gateway Supports Two Communication Protocols, Zigbee And Wi-Fi, And Can Add Up To 128 Sub-Devices. Automation Scenarios Can Still Be Executed When The Network Is Abnormal. 2. Supports Two Types Of Communication Protocols, Making Your Smart Home More Convenient. The Zb Bridge-P Version Supports Two Communication Protocol Devices, Zigbee And Wi-Fi. A Gateway Can Realize The Interconnection And Interoperability Between The Above Different Protocol Devices, Allowing You To Building A Smart Home Is Easier. 3. 128 Zigbee Devices Can Be Added, And A Zb Bridge-P Gateway Can Add 128 Sub-Devices. Switch And Socket Devices Can Be Used As A Zigbee Routing Device To Expand Network Coverage! 4. Customize Your Home Security Mode By Setting Different Alarm Devices To Customize Three Home Modes: Home Mode/Away From Home Mode/Sleep Mode 5. Easily Arm And Disarm, Easily Arm And Disarm, And Switch Safety Modes Freely! Product Name: ZB Bridge-P Voltage/Current: 5V---1A Wireless Standard: Wifi IEEE 802.11 B/G/N 2.4Ghz, Zigbee 3.0 Working Temperature: -10℃~40℃ Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour:As Shown Material:PC V0 Package Contents: 1 x Wireless Smart Gateway 1 x Data Cable 1 x English Instruction Manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.