【Functions & Supports】Control presentations remotely (black/full screen, page navigation, volume) and compatible with Windows 7+, Mac, Linux, Android. Works with PowerPoint, Keynote, Google Slides, PDFs, and more. 【Gesture-Controlled Volume Adjustment】Tilt the device up/down to adjust audio hands-free via built-in gyroscope—ensures precise, distraction-free volume control during speeches or videos. 【Dual Mouse Button & On/Off Toggle】Switch between presentation mode and desktop navigation with left/right mouse buttons. Quick-toggle cursor control replaces bulky peripherals for multitasking. 【Full-Screen Ink Annotation】Draw, highlight, or underline directly on slides in real-time. Erase all annotations instantly with one click—ideal for educators to emphasize key points seamlessly. 【Long-Lasting Rechargeable Battery】350mAh battery lasts weeks on a 2-hour USB-C charge. White blinking light indicates low battery—no more interruptions during critical presentations. 【2-in-1 USB-C Receiver】Dual USB/Type-C design works with Mac, laptops, and PCs. Built-in magnet securely stores the receiver under the clicker for portability. Wireless Presentation Clicker with Air Mouse Control, Gyro Volume Control & Ink Annotation – 2-in-1 USB-C Rechargeable Presentation Remote for PowerPoint, Keynote, Mac/PC/Laptop