[ One-key for , freely for ] - The function bases on Air mouse Flip pen technology. In the or WPS presention press the label key also move the mouse to take notes.[ RF, demo freely ] -The function bases on Air mouse Flip pen technology. In the or WPS presention press the label key also move the mouse to take notes.[ Plug and Play ] - Mini-receiver, saving computer USB space, integrated design, easy to carry.[ Widely APPLICABLE ] - Powerpoint remote supported : /7/8/10, OS; Presenter remote supported software: PowerPoint, Google Slides, Prezi, (Keynote & Numbers & ), PDF, Word, Excel, ACD See, Website, etc.;SPECIFICATION:: Android/windows/ os/linuxRemote distance: 100mBattery: 360 mAh polymer lithium batteryWorking voltage: 3.6V-4.2VOutput power: less than 12mWLasers wavelength: 650nm (red light)Lasers distance: 200mTransmitting frequency: 2.4GHzcolour: blackMaterial: plasticSize: about: 140x19x19.5mmPackage Contents:1 x page turning pen1 x receiver1 x charging cable1 x and English manualOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.