1) Qualcomm

Chipset SKU : CSR8675, CSR8670, CSRA63120

Supply:  SONY WF-1000X, Ticpods free, Bargi headphone...

CSR8675 is a fully integrated scheme supporting Bluetooth 4.2 dual-mode authentication, integrated decoding and operation. It supports aptX, AAC, SBC and other transmission protocols. It also supports dual-wheat noise reduction, EQ regulation and other extended functions.

2) BES

Chipset SKU: BES2000IZ  supply to MEIZU mobile phone

BES Evergreen Technology BES2000IZ is a new generation of fully integrated adaptive dual-mode Bluetooth headset solution. It has the characteristics of full integration, high performance and low power consumption. It supports Bluetooth v4.2 standard, 192KHz/24bit hi-Fi audio, EQ and bass enhancement, and other sound effects technologies. The output signal-to-noise ratio of audio is as high as - 105db. In terms of scalability, it can support adaptive active drop. Noise function

3) Airoha

AB1526,  AB1526P,  AB1524....  supply to Zolo Liberty+

Airoha Luda AB1526 is a fully integrated single chip. It is suitable for highly integrated audio solutions, supports Bluetooth 4.2 dual mode authentication, supports HFP 1.6 and AAC decoders, and supports custom dual Mic broadband voice. It can achieve good noise reduction and echo cancellation functions. Through Luda's AiroStereo technology, excellent TWS real wireless Bluetooth headset experience can be achieved. AB1526 embedded serial flash memory can be more flexible to transplant third-party software and upgrade firmware. It also has better DSP algorithm and supports multiple EQ settings.

4) Wind Tunner

WT2000 

5)Jieli 

AC175

Jieli Technologies has introduced several Bluetooth headset solutions, which have excellent compatibility, low cost and long standby time. They have shocked the market occupied by CSR with low price.

6)Realtek

RTL8763B 

Realtek is a leading IC design company in Taiwan's Hsinchu Science Park. Most integrated sound cards on computer motherboards come from its own hands. At present, many Bluetooth chips and highly integrated sound cards have been launched. If Ruiyu enters the TWS real wireless Bluetooth headset scheme market, the current market pattern will undergo profound changes.