Wireless presenter for navigating through presentations with ease; bright-red laser pointer shows up clearly on almost any background | Intuitive one-touch controls for on/off, laser pointer, volume, forward/backward, start/end, and black screen (to shift the attention back to you) | Plug-and-play wireless receiver plugs into a computer's USB port — no set up or software needed | Wireless range of up to 100 feet (30 meters); battery-power indicator light; includes 2 AAA batteries | Contoured shape fits comfortably in the hand and portability wireless presenter pen.Support options: Supports MS Word, Excel, PowerPoint, ACD See, website, iWork (Keynote & Numbers & Pages) etc.

USB Hub: Instantly Add Four USB 3.0 Ports to iMac, Macbook, Mac Pro / mini, Surface Pro, XPS, Notebook PC, Mobile HDD, and More.Note: This hub is not for charging devices because it supports an output max current of only 900mA.Charging very slowly | Ultra Slim & Advanced chipset: Advanced chipset with good thermal design, will not heat even if used for a long time | High-Speed Data Hub: Supports Transfer Speeds up to 5Gbps (USB 3.0), 480Mbps (USB 2.0), and 12Mbps (USB 1.1). Note: This hub support output max current up to 900mA.So some HDDs that need a current of more than 900mA need an external power adapter | Great Compatibility Laptop: Compatible with Windows 10/8/8.1/7 / Vista / XP and Mac OS X, Linux, and Chrome OS( The USB 3.0 Hub Reverse Compatible USB 2.0 and USB 1.1.) | Package Contents: BYEASY UC-109 USB 3.0 Hub Four Ports, User Manual

USB 3.1 Type-C & 3.0 USB Hub Version: The combination of USB-A and USB-C is designed to allow one device to compatible with a variety of apple MacBook pro, mac air, iMac, ps4 pro, surface pro, computers, laptops, and other devices simultaneously. Save users time and equipment costs. | Ultra Slim & Advanced chipset with 2 ft extension cable: With two feet of cable, you can arrange your laptop or desktop workstation for maximum comfort and productivity. Both for desktop pc or laptop setups. Advanced chipset with good thermal design, will not heat even if used for a long time. | 4-in-1 Data Hub with High-speed: Every port is equipped with USB 3.0 technology, capable of transferring data at speeds of up to 5Gbps-fast enough to transfer an HD movie in seconds. | Great Compatibility and Easy to Use: Fully plug and play without any drivers. Compatible with Windows 10/8/8.1/7 / Vista / XP and Mac OS X, Linux, and Chrome OS. ( The USB 3.0 Hub Reverse Compatible USB 2.0 and USB 1.1.) | Package Contents: BYEASY USB 3.0 Hub Four Ports (UH-109D), User Manual. Notes: It is not recommended to use the USB 3.0 port to charge the devices and the charging speed is slow.