Note: If you need Windows 7 drivers, you can contact us. We will provide to the buyer. Description: Usb 5.0 Bluetooth dual mode dongle, compatible with Bluetooth 2.1, 3.0, 4.0, 4.1 and 4.2 specifications. Integrated low-power MCU, RF transceiver, baseband, modem, USB, UART, PCM/I2S, SARADC and 24 GPIOs with the Barry Bluelett protocol stack to provide low-cost, low-power, flexible and powerful Bluetooth applicationSupport Ca1/2 Power levelSupport Bluetooth 5.0 dual-mode specification, support both claic Bluetooth and low-power BluetoothSupport USB/UARTSupports 7-BR/EDRE ACL links, 1-SCO/eSCo audio links and 1-BLE slave links or 4-BLE mastersPaed BQB certificationOperating temperature -20 to 70 CSupport operating system: Windows 8.1, 10, 11 (no driver, plug and play), Windows7 system can be installed driver useSupport Software: Microsoft Bluetooth Software, CSR Harmony, Bluez, BluesolEil. Bluelet. BluedroidSupport application functions: HFP/HSP (handsfree phone/headphone) A2DP/ AVRCP (stereo music) HID/HOGP (keyboard mouse).DUN/PAN (online), PBAPMA PFTPSPP.GATT, etc. Specifications: Item Name: V5 Bluetooth 5.0 AdapterInterface: USB 2.0Transfer rate: Max 24MbpsBluetooth Version: Bluetooth V5.0Frequency Band: 2.400-2.480GHzColor: BlackItem Size: 21x16x5 mmLow-power selectable 1.2 to 3.6 VI/O.Supporting multiple languages.Compatible with Bluetooth v1.2/2.0/2.1/3.0/4.0Support operating system: Windows 8.1, 10, 11 (no driver, plug and play), Windows7 system can be installed driver use Package content: 1x Adapter.