At present, due to space limitations and the influence of strong magnetic fields, smart wearable devices such as TWS headphones and watches are paying more and more attention to magnetic field interference. In order to increase the anti-EMI capability of the inductor and reduce the magnetic field interference to the peripheral devices, HUASUN developed a full magnetic shield coil inductor, HMWN / HMWA series by using the secondary glue coating process to further improve the EMC characteristics of the product. These types could application in smart watch, TWS headset, bracelet, High-end mobile phone, Pad, and other small portable equipments.