Description:The latest touch screen is very easy to use for teaching. There is in a set. They are of different colors, which is good in quality and low in price.Features:1. Mainly suitable for electronic whiteboard presentations, touch screen presentations and multimedia classrooms.2. Infrared touch , capable of touching large screen TV.3. Support infrared, pressure sensor, optical whiteboard and interactive tablet.4. Note: This section does not apply to smart phones, tablets and other capacitive screen devices.5. If you have any questions or suggestions, please our service team.Specification:Name: Touch Screen : ABSRandom Color Size: about 15*7*3cm/5.91*2.76*1.18inPacking List:Touch Screen *3Note:Due to the lighting effects and shooting angles, there is color difference in the product, please understand.Due to anual easurement, there is a tolerance in the product size.