COMFORTABLE ERGONOMIC DESIGN：Scientifically ergonomic designed vertical mouse encourages healthy "handshake" wrist and arm positions for more precise and much smoother movement and less strain. Perfect for those Officemen needing long time working with mouse. | 3 ADJUSTABLE DPI: Nulaxy vertical mouse with 800 / 1200 / 1600 DPI Resolution Optical Tracking Technology, provides much sensitive than standard optical mice with smooth and precise tracking on different kinds of surfaces. | EASY TO USE: Plug and play, no lag, no loss of connectivity. The setup of the wireless vertical mouse is pretty easy, no driver installation needed. Just fit the receiver into a USB port and use with ease. ( One Nulaxy USB receiver at the bottom of mouse) | MULTIFUNCTION BUTTON: Nulaxy ergonomic mouse, with DPI switch for easily changing the cursor speed and adjusting the sensitivity of the mouse. Added forward/backward buttons provide convenience when webpage browsing, increasing your work efficiency. A sturdy scroll wheel with rubber spins makes sure that your hand will not slip when scrolling. | WIDE COMPATIBILITY: Wireless Vertical mouse Widely compatible with Windows 2000 / XP / Vista /7/8/10/ Mac / Linux. Fits for desktop, laptop, PC, Chromebook and other devices. ( Note: The Forward/Backward buttons are unavailable in Mac OS X.) Meet all your needs and your daily work easily.

☛【New Double Interface Design/Type-C+USB3.0 】This new DIAMOND-SHAPED DESIGN makes the drive and the two different USB cable are combined in one, it has 2 concealed wire grooves for carrying and storing USB3.0 and Type-C interface. you can easily connect to a computer that requires Type-C or USB 3.0 interfaces. you won't be annoyed by losing this little cable. Pls plug in the power cable when using it, in case the optical drive was broken as insufficient power supply. | ☛【The Stablest Speed for Blu-ray Dvd Drive】The external blue ray dvd drive is equipped with Type-C and USB3.0 high speed interface, up to a maximum of 5Gbps and stable performance with strong fault tolerance. which far faster than traditional USB2.0(480 Mbps). USB3.0 also backwards compatibles with USB 2.0 and USB1.0. | ☛【Super Reading Writing Speed】The Blu Ray dvd drive read CD discs at up to 24x, DVD disc at up to 8x, and Blu-Ray disc at up to 6x. The external Blu-ray Reader supports 8.5G 4.7G 700M Normal CD DVD burning capabilities. Suggest to download free software"Cyberlink BD&3D Advisor”,install it on your computer, start to perform testing, it will tell you a result if your computer support playing blu ray or 3D. | ☛【Widely Compatible】Featured with USB 3.0 and Type-C interface, support blu ray and 3D Player. External blue ray drive is compatible with Windows 7 / 8 / 10 / Vista / ME / SE / XP / 98 / 2000 , Linux, all Version MAC OS 10 or below systems, can read and burn DVDs, CDs as well as 3D Blu-ray discs that supports data storage up to 128GB.

Twin Speaker Connection Plate | 4X Solid Metal Screw Down Binding posts with banana plug in top | Gold Plated Connections | Solder Tabs on back of each connection | Great for custom made speaker setup