How do you choose a TWS earphone? You will surely be confused by the dazzling array of products available based on price, quality, stability, battery life and so on. The TEAC brand was founded in Japan in 1953 and has been focusing on audio products. At the same time, as an local brand, TEAC has been operating in Australia for many years. Unlike other products, TEAC guarantees product quality and performance and you do not need to worry about after-sales service. Top sound quality and Top performance. Professional System Solution with Bluetooth 5.0 The main solution of this TWS earphone is to use the well-known Realtek chip. More than 90% of computer audio chips are produced by Realtek. This RTL8763B chipset provides true Bluetooth 5.0 standards while meeting stability, low latency, and low power consumption. Both ears can be used simultaneously or separately. Real 6 hours of uninterrupted playback unlike the empty claims of other products. Real battery capacity, can last a full 6 hours without charge. Earphone 50mA/H, case 3500mA/H.