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The most advanced Bluetooth 4.0 adapter. Compatible with Bluetooth 2.0/2.1/3.0 standards. Enables wireless communication with Bluetooth-enabled devices, printers, phones, keyboards, controllers, and more. Bluetooth technology offers very low power consumption. Ultra-portable design. New generation Bluetooth 4.0 for more versatile wireless connectivity The USB-BT400 is a smart device with USB connectivity and the new capabilities of Bluetooth 4.0 technology. It allows you to connect to a myriad of compatible devices with truly low power consumption (BLE, Bluetooth Low Energy). In dual mode, the USB-BT400 maintains full compatibility with Bluetooth 3.0, 2.1, and 2.0 standards. Technical Specifications Data Rate Up to 3Mbps Distance of Use Over 10 meters in free space Frequency Band 2.4~2.4835GHz unlicensed ISM band Spectrum FHSS (Frequency Hopping Spread Spectrum) Modulation GFSK for 1Mbps, p/4-DQPSK for 2Mbps; 8-DPSK for 3Mbps OS Support Windows® 10, 32bit/64bit Windows® 8, 32bit/64bit Windows® 7, 32bit/64bit Windows® XP, 32bit/64bit