1. Only compatible with iPad / iPad Pro / iPad Air / iPad mini 2018 to the newest. 2. 1.7mm smooth and thin nib, smooth writing, and does not hurt the screen. 3. 140mAh battery, 1 hours charging time, 12 hours working time 4. 8 pin jack for charging 5. No need to install software, no need to connect bluetooth, it is very convenient to use right away
