1.Development of TWS 
1.1 Trends towards Wireless Connectivity and Smart Functions 
1.2 Enhanced Bluetooth Technology and Removal of 3.5mm Jack from Smartphones Drives TWS Development 
1.3 Heated TWS Market Competition Pushes Leading Brands to Upgrade Services 
2.Trends of the TWS Application IC Industry 
2.1 Bluetooth SoC and MCU as Key Components in TWS Systems 
2.2 Major Development Trends of TWS 
2.2.1 Trend #1: Leading Chipmakers Develop In-house Bluetooth Solutions 
2.2.2 Trend #2: Focus on Low Latency Technology 
2.2.3 Trend #3: Bluetooth SoC with ANC Becoming a Must-have in Mid-range and High-end TWS 
2.2.4 Trend #4: Noise Cancellation and Voice Assistant Boost Demand for MEMS Microphones 
2.2.5 Trend #5: Increased Adoption of SiP Technology in Mid-range and High-end TWS 
3.Application IC Suppliers’ Deployment in TWS 
3.1 Most IC Suppliers Already Extend Reach to TWS 
3.2 Leading Bluetooth IC Suppliers Tap into Chinese Customers’ Supply Chains 
3.2.1 Airoha Technology’s Bluetooth Technology Favored by Chinese Customers 
3.2.2 Realtek Taps into Mid-range and High-end Market Segments with Low Power Consumption Feature 
3.2.3 PixArt Imaging Launches Wireless Audio SoC for Chinese Customers through Subsidiary Audiowise Technology 
3.3 Majority of Taiwanese MCUs and Sensors Supplied to Chinese Brands 
3. MIC Perspective 
Appendix 
List of Companies 
 

Development of TWS (True Wireless Stereo), touching on their development roadmap, functional blocks, and Bluetooth technology adoption

Development trends of TWS application IC industry, touching on five major trends and major TWS application IC suppliers

Development of major TWS application IC suppliers, including Airoha, Realtek, PixArt Imaging

Figure 1 Evolution of Headphones 
Figure 2 Functional Blocks of TWS
Figure 3 Leading Chipmakers’ Bluetooth Technology Used for TWS

Table 1 Top 5 TWS Brands’ New Products in 2020 
Table 2 Latency of Major Bluetooth SoCs
Table 3 Application IC Suppliers for TWS  
Table 4 Airoha Technology’s Bluetooth ICs for TWS 
Table 5 Realtek’s Bluetooth ICs for TWS
Table 6 PixArt Imaging’s Bluetooth ICs for TWS