| CSR case , in line with bluetooth v1.2, v2.0+DER, v2.1+EDR version , in line with USB v1.1,v2.0 。
2.Operation freguency band :from 2.4GHz to 2.483GHz , using FHSS technology ( hopping fequency and widening frequency ) .
3.The operation range can reach 30 meters under open space .
4.Sensitivity :< -85 dBM .
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