"Chipset: CSR Bluetooth Version: V2.0 Working distance: 10 meters. Frequency Range: 2.402hz-2.480GHz. Receive Sensitivity: -80dBm. TX Power: 0dBm. Input power 5V from USB port. Operating channels: 79 channels of 1MHz BW. Host interface (USB): USB spec 2.0 complient. Operating temperature: -20℃-75℃. Storage temperature: -40℃-85℃. Operating humidity: 10%-90%. Works with bluetooth enabled device. "
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