"•Made from aluminium material with pure copper pen tip. •The pen tip has a protective film that protects the screen from damage. •Dimensions : 1.45mm x 9mm x 175mm •Charging time: 1 hour Working time: 8-10 hours Operating distance: 1.6mm Standard accessories: USB charger Battery specifications: 0.518wh 3.7v 140mah Compatible with: Android, Apple and all devices with flat-panel capacitive screen capabilities. "
