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Q：What chip do you use for matter device,and what standard and frequency band,channel parameter does it use?

A：

We use Sillicon Lab EFR32MG24 which support bluetooth 5.2 and Thread. 

Standards: IEEE 802.15.4

Frequency bands: 2.4 GHz

Channel: 11-26 (2400-2483.5 MHz)

Channel bandwidth: 2 MHz