True Wireless Stereo (TWS) earbuds and its coexistence problem

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Allen Liao / Allion Labs With the recent withdrawal of 3.5mm headphone jack design in many mobile phones, more and more users are using Bluetooth® earbuds over conventional earphones when they commute or exercise. With the development of Bluetooth® technology, wireless earbuds have evolved into a very small size and cordless form factor that we call it True Wireless Stereo (TWS). The Wi-Fi coexistence problem is a crucial topic for TWS products, since its size is so compact, and the antenna on TWS is much smaller than classic Bluetooth® earbuds. The long latency of TWS button function and choppy music due to frequency coexistence problems can be expected. These connection problems will lead to bad user experiences. Users may leave bad reviews on the e-shop, which will affect the sales performance of the products, and also have a negative impact on the brand's impression. Figure 1: 3 TWS products form different brands In this article, we choose 3 TWS products from different brands to