Zhongke Lanxun (also known as Bluetrum) recently went to public after Actions Semiconductor. Zhongke Lanxan is a Shenzhen, China based fabless company focused on developing TWS earbuds SoCs.
Bluetrum’s TWS SoC chips can be found mostly on a mid-to-low tier TWS earbuds and one of their main business is white-label market.
Bluetrum’s chips can be found in the brands such as Transsion, Meilan, Philips, Lenovo, iFLYTEK, Tmall Genie, etc.
One of Bluetrum’s differentiation from another chip makers is that they use RISC-V core to develop and design products which is a bit different as most chip makers use ARM cores as the main processor.
RISC-V is an open standard ISA (instruction set architecture) and Bluetrum developed their own RISC-V core.
SAR’s latest ‘IC Platforms & Components in TWS’ BRIEF covers major TWS SoC vendors including Bluetrum.