Light-weight, innovative automatic hands-free design. No button needed; simply inhale to activate pen. Stylus tip is compatible with all smart phones and tablets. 3.3-4.2 volts, 280mah Li-Ion battery (300 hit avg/full charge). Universal 510 Thread. Weight = 18g. RoHS-Certified, “Lead-Free.” FCC and CE-Certified. USB Charger included.
