Features: 1) Bluetooth V1.2 compliant 2) USBV1.1 / 2.0 compliant 3) Operation range: 20M 4) Built-in antenna 5) Frequency band: 2.4GHz unlicensed ISM band 6) Maximun data rate: 5MB 7) Sensitivity: -89 dBm at 0.1% BER 8) LED status indecator Inner packing: Color packing