Fangrui Product Details 1. Multimedia Remote Control Usb Rechargeable Bright Red Light Pointer Page-turning Pen Low Battery Indicator 200mah 2. Description: 3. Remote Control Distance: 100m 4. Red Light Range: About 200m 5. Battery: Lithium Battery 6. Battery Capacity: 200mah 7. Rated Voltage: 3.7v 8. Transmitting Technology: 2.4ghz Rf 9. Color: Black, White, Pink ( Optional ) 10. Item Size: 130* 21* 12.5mm 11. Specifications: 12. Low Battery Indicator. 13. When The Battery Is Too Low, The Indicator Light Will Be Blue And Flicker For A While. 14. Stable Transmitting. 15. Adopting 2.4ghz Rf Transceiver, It Offers Low Power Consumption And Good Performance, Used Widely In Any Kind Of Public Occasions. 16. Convenient & Quick Connection. 17. Usb Receiver, Plug And Play. Be Free Of Driver Software. 18. Charge It Anytime, Anywhere. 19. Connected With Usb Cable, You Can Charge It With Laptop, Pc, Power Bank. 20. Bright Red Light Pointer. 21. A Warm Reminder For Participants To Catch Each Detail You Speak. 22. Wide Compatibility. 23. Compatible With Win7/8/10, Mac/ios, Android, Unix, Linux System And Office Series Page-turning Format Files. 24. Package Included: 25. 1 * Multimedia Remote Control 26. 1 * Usb Cable