The Micro Bluetooth USB (Universal Serial Bus) adapter networks Bluetooth enabled devices such as cell phones, keyboards, & headsets. Slightly larger than the size of a penny, simply plug this micro-device into an available USB (Universal Serial Bus) port on your laptop or desktop & experience exceptional Bluetooth connectivity. Connect as many as 7 Bluetooth devices at distances of up to 10m. Enhanced Data Rate (EDR) technology transfers your data quickly. Adaptive Frequency Hopping (AFH) minimizes interference from other wireless devices & advanced wireless encryption protects your network. Experience exceptional Bluetooth® connectivity for distances of up to 10 m (33 ft.) with stereo audio support. Transmission Speed Up to 3 Mbps data transfer rate with Enhanced Data Rate (EDR) support Energy Efficient Bluetooth® Low Energy (BLE) protocol support LED Indicators LED indicators convey device status Stereo Audio Experience stereo audio with Advanced Audio Distribution Profile (A2DP) support Intuitive Interface Manage all of your Bluetooth® devices with the intuitive Windows® software Operating Systems Compatible with Windows® operating systems Bluetooth® Device Compatibility Backward compatible with legacy Bluetooth® devices