What's in the box:

Tuya 4CH USB DC5V/7-32V WiFi Switch Wireless Relay Module Timing Function Remote Switch for Android/IOS APP Remote Control Compatible with Amazon Alexa Google Home (Standard)

Features:
*Supports WiFi network. Supports numerous WiFi smart switches on one smart phone.
*Supports status tracking: device status timely provided to the Tuya / Smart life.
*Supports remotely turn on or off connected appliances, for example light, electric kettle, electric rice cooker, electric curtain, access control, etc.
*Supports max 8 enabled scheduled/countdown/loop timers for each device.
*Voice Control: Compatible with "Amazon" Alexa, for Google Home.

Specifications:
Operating voltage: 5V Micro USB / 7-32V DC
Two input interfaces
USB port power supply more convenient
Output: 10A Max, 4gang
Relay Load: AC 250V
4 Channel Total Load: 10A/2200W
Single Load: 10A/2200W
Board consumption: <1W> Standby current: 80mA
Supports to control different voltage ranges
Relay lifespan: 1000000 times
Electrical insulation resistance: 100M
Electric shock voltage: 1000V
Relay maximum pull time: 15ms
Relay maximum release time: 5ms
Working mode: Inching /self-locking, Interlock
Wireless Standard: 2.4GHz, 802.11 b/g/n
Mobile App: Tuya / Smart life on Android/IOS
Applicable occasions: smart home. Wifi control
Controlled lines: 4
Operating temperature: -40 degrees to +70 degrees
Operating Humidity 40%-80% RH
Item Size: 73 * 73 * 18 mm / 2.9 * 2.9 * 0.7in

Package Information:
Package Size: Approx. 10.5*8.5*4cm / 4.1*3.3*1.6in
Package Weight: Approx. 78g / 2.8oz

Packing List:
1 * Wireless Switch Module