... as main chip,with bluetooth 2.0 as the interface 2.use industry-leading bluetoothsolution ,WIDCOMM BTW Bluetooth 1.with CW6627 as ... .0 as the interface 2.use industry-leading bluetoothsolution ,WIDCOMM BTW Bluetooth software whith is specified sofeware by Microsoft official .3.special ... 20‘C to 55‘C, humidity :20‘C to 559.bluetooth V2.0 interface standard 10.operating idstance :10meters 11.modulation ...