Touchable pen head for capacitive screen Wear-resistant conductive cloth pen head, more convenient for direct touch writing 3R green laser, safe and clear 520nm wavelength and >200m green spot for clearer indication Rechargeable lithium battery The built-in, environmentally friendly, rechargeable lithium battery, ensures hassle-free and long-term continuous use. Mouse left button function Mouse left button function provides a more convenient user experience Reliable 2.4G wireless connection Reliable 2.4G wireless connection up to 20 meters. Customized set countdown vibration alerts You can set countdown vibration reminder during your speech, allows you better control the time of the speech
