We are factory direct sales with stock available. This product is for direct sound control, and there might be accidental triggers, such as the light turning off or on when we are chatting normally. This is considered an accidental trigger, and it's just a matter of turning the light back on or off. It does not constitute a quality issue. If you are sensitive to this, please do not purchase. Due to the fact that the light is controlled by sound, this is related to the volume of the sound and the environment. If you encounter a situation where the light doesn't turn on or off when you call for it, just call a few more times. Do not shout or raise your voice; just use our normal speaking speed. The owner has tested it, and it's simple and effective. For more detailed questions, you can consult our customer service.

The difference between "simple" and "multi-functional"

The command for '简易' is simple.Turn on the light, turn off the light, switch the color, turn on the light, turn off the light. Use method: see the back of the color box.
Instruction Manual

英文语音指令是：
Turn on the light
Switch off the light
Change the color

The instruction of 'multi-functional' is diversified.,In addition to the normal on/off switch for the lights, you can also set the kitchen lights to turn on, the bedroom lights to turn on, and the delay switch for the lights. Instructions on how to use are on the back of the color box (all instructions are on the color box).For more detailed questions, please consult customer service.