1. Fitable for Ipad 2/3/4; Samsung Galaxy Tab P5100,P7510,NOTE10.1...etc tablets.
2. Bluetooth 3.0 and version of USA BOTONG
3. Certified by BQB,CE,FCC,MSDS,UN38.3,ROHS
4.Operated within 10 meters
5.Over charged,over discharged,short circuit and lower voltage protection
6. Samsung Lithium Polymer Battery; Battery with 4000MAH and 8000MAH available for your choice