Description 5.0 wireless dual-mode dongle. The chip integrates a low-power MCU, RF transceiver, baseband, modem, USB, UART, PCM , SARADC and 24 GPIOs with the Berry Bluelett protocol stack to provide low-cost, low-power flexible and powerful wireless application. Features - Color: Random color. - Size: 2.2 x 1.6 x 0.6 cm0.87 x 0.63 x 0.24 inch. - Material: Plastic. - Transmit power: 10DBM (Class II) - Sensitivity: -90dBm. - Speed: 3Mbps - Protocol standard: V 5.0 protocol. - USB expansion port: USB2.0. - 5.0 wireless dual-mode dongle. The chip integrates a low-power MCU, RF transceiver, baseband, modem, USB, UART, PCM , SARADC and 24 GPIOs with the Berry Bluelett protocol stack to provide low-cost, low-power flexible and powerful wireless application. - Support Cass1 2 Power level classic and low energy - Support USB UART - Support 7-BR ACL link, 1-SCO audio link and 1- BLE slave link or 4- BLE master - Supported operating systems: Compatible for Windows, , Linux, , UITRON. - Support application functions: HFP HSP (hands-free phone headset) A2DP AVRCP (stereo music) HID HOGP (keyboard and mouse). DUN PAN (Internet access), PBAPMA PFTPSPP.GATT, etc. - Applicable products: mouse, keyboard, speaker, earphone, printer, gamepad, etc.Package list: 1 x Wireless Receiver Transmitter