<b>Doosl Wireless USB Presentation Clicker with Red Laser Pointer, 2.4GHz Wireless Presentation Remote for Google Slides, Keynote, PowerPoint, Prezi</b><br><br> <b>Specifications:</b><br> <b>Transmitter</b><br> Wireless Technology: Radio Frequency<br> Frequency: 2.4GHz<br> Remote Control Distance: Max 330ft (100m)<br> Max Output: <1mW, Class II<br> Wavelength: 650nm<br> Battery: AAA*1<br> Working Voltage: 1.5V<br> Dimensions: 5.48*0.72*0.78in (139.2*18.2*19.7mm)<br> Weight: 0.88oz (25g)<br><br> <b>USB Receiver</b><br> Port: Standard USB (Type A)<br> Compatible Operating System: Windows 2003, XP, Vista, Windows 7/8/10, Mac OS, Linux, Android<br> Dimension: 0.86*0.54*0.28in (21.95*13.8*7.15mm)<br> Weight: 0.07oz (2g)<br> <b>Warm Notes: the Receiver is of Standard USB port; If you want to use it on a Type-C device (like the latest MacBook), you need to connect via a Type-C adapter.</b><br><br> Safety Warning:<br> 1. This Wireless Presenter with Laser Pointer is not a toy, please keep it away from the children!<br> 2. Never aim the laser at people's or animals' eyes!<br> 3. It is illegal to aim a laser at an aircraft, vehicle, and any public or private structures.