1.bluetooth V3.0, Class 2 2.sniff power save mode 3.3mA when pressed,Li-battery 240 MAh inside 4.with power switch Mini Bluetooth Keyboard 1. bluetooth V3.0, Class 22. sniff power save mode3. 3mA when pressed,Li-battery 240 MAh inside4. with power switch and rechargeable 5. works with Windows system6. Support Ipad,SONY Ps3 Bluetooth keyboard for ipad