... Quality 3) Nice Service 4) Fast Shipment Mini Bluetooth Adapter BTD-004General RadioBluetooth Class 2, 20 meters ... operating range depends on the environmental factors.) Bluetooth StandardBluetooth v 1.2 & 1.1Spread SpectrumFHSS ... Bluetooth Software IVT BlueSoleil(Language Supported: English, Simplified Chinese, Traditional Chinese, Japanese, Korean, French, Italian, German, Spanish) Mini Bluetooth ...