Features: brand new and high quality Stable Transmission:Adopting 2.4ghz rf transceiver, it offers low power consumption and good performance, widely used in any kind of public occasion. Convenient and Fast Connection:USB receiver, plug and for play. Free driver software. Charge Easily:Connected with usb cable, you can charge it with laptop, pc, power bank. Bright Red Light Pointer:A warm reminder for attendees to pick up every detail you speak. Wide Compatibility:for win7/8/10, for mac/ios, android, unix, linux and office series format files. Specifications: Remote Control Distance: 100m Red Light Range: about 200m Battery: Lithium Battery Battery Capacity: 200mah Rated Voltage: 3.7V Transmission Technology: 2.4ghz Rf Color: Black, White, Pink (optional) Item Size: 130x21x12.5mm/5.12x0.83x0.49in Note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Multimedia Remote Control, 1 x USB Cable.