1、Dual mode BT wireless transmission low power consumption and optional 2/6V input/output. 2、More convenient to carry out, micro appearance designS, delicate and small, plug in the computer when using it almost hardly notice its existence, will not take up too much space. 3、Support BT wireless voice and data, support multi‑language BT wireless LAN sharing interface. 4、Has good performance, the product runs smoothly and does not freeze, which can bring you a better using experience. 5、Made of high‑quality ABS material, hard, durable, not easy to wear, has long service life. 1 x Adapter 1 x Optical Disc Condition: 100% Brand NewItem Type: USB Wireless DongleMaterial: ABS + Metal Chip Type: RTL8761BSize: Approx. 17 x 6 x 30mm / 0.7 x 0.2 x 1.2inSupport network, dial - up, fax, LAN access operating system: for windows7, for windows8, for windows 8.1, for windows10Frequency Range: 2.4ghz (2402-2480mhz)Universal Serial USB Interface: USB 2.0/ 3.0/ 4.0/ 4.2Transmission Speed: 3mbpsReceiving/Sending Range: 10M-20mMain Features: BT wireless low power consumption, BT wireless USB adapter dual mode, BT wireless transmission low power consumption and optional 1.2/ 3.6V input/output, support BT wireless voice and data support, multi-language BT wireless LAN sharing interface