5.0 wireless dual-mode dongle. The chip integrates a low-power MCU, transceiver, baseband, modem, USB, UART, / , SARADC and 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 cm/0.87 x 0.63 x 0. 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, transceiver, baseband, modem, USB, UART, / , SARADC and 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 - -BR / ACL link, 1- / and 1 link or 4 master - Supported operating systems: Compatible for Windows, , , , UITRON. - Support application functions: HFP / (hands-free phone / headset) A2DP / AVRCP (stereo music) / HOGP (keyboard and mouse). / PAN ( access), PBAPMA PFTPSPP. , etc. - Applicable products: mouse, keyboard, speaker, earphone, printer, gamepad, etc. Package list: 1 x Wireless Receiver Transmitter