1. Whether people will feel uncomfortable or uncomfortable after the machine is turned on, there is no uncomfortable feeling in the products of Yingxun.

2. When the shield is working, the recording equipment can be placed at any angle to achieve the shielding effect, not only the shield is facing the microphone.

3. Whether the shielder supports the expansion of the expander to form a cellular shielding network to achieve the best shielding effect.