USB Bluetooth-compatible 5.0 Adapter Receiver Transmitter Audio Music Wirele Dongle for Computer PC LaptopFeature:Bluetooth-compatible 5.0 dual-mode dongle, compatible with Bluetooth-compatible 2.1, 3.0, 4.0, 4.1 and 4.2 specifications. The chip integrates a low-power MCU, RF transceiver, baseband, modem, USB, UART, PCM / I2S, SARADC and 24 GPIOs with the Berry Bluelett protocol stack to provide low-cost, low-power flexible and powerful Bluetooth-compatible applicationSupport Ca1 / 2 Power levelSupports Bluetooth-compatible 5.0 dual-mode specifications, supports both claic Bluetooth-compatible and Bluetooth-compatible low energySupport USB / UARTSupport 7-BR / EDRE ACL link, 1-SCO / eSCo audio link and 1- BLE slave link or 4- BLE masterWorking temperature -20 to 70 Supported operating systems: for Windows, Android, Linux, FREERTOS, ThreadX UITRONSupport software: for Microsoft Bluetooth-compatible software, CSR Harmony, Bluez, Bluesoleil. Bluelet. BluedroidSupport application functions: HFP / HSP (hands-free phone / headset) A2DP / AVRCP (stereo music) HID / HOGP (keyboard and mouse). DUN / PAN (Internet acce), PBAPMA PFTPSPP.GATT, etc.Specification:Pr Transmit Power: 10dBm (Cla II)Sensitivity: -90dBm 0.1%Speed: 3MbpsProtocol Standard: V 5.0 ProtocolSupport System: for Windows XP / Vista / Win7 / Win8 / Win8.1 / Win10USB Expansion Port: USB2.0Function Dual-Mode Transmiion: V5.0 TechnologyWorking Temperature: -20 To 70CProduct Size: 22 X 16 X 6mm/0.87 X 0.63 X 0.24"Product Weight: 3gPacking Size: 132 X 102 X 20mm/5.2 X 4.02 X 0.79"Package Weight: 16gNote:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-3mm measuring deviation due to manual measurement. 1 X USB Bluetooth-compatible Adapter