Solos Wearables Smart Glasses High definition virtual display - clear enough for video and text. Connectivity :HDMI. No Bluetooth connectivity Hdmi compatible - can connect to any device capable of outputting 720P Magnetic docking station - easily attach when you need it and pocket It when you don't Internal battery - for a 90 minute runtime.Charging- 5V Micro USB Highly portable - small and incredibly tough Actual Screen Size: 0.195" Virtual Screen Size: appears as 4 inch at 12 inches from the user's eye display refresh rate: 60Hz Video Connection: HDMI Wired (no wireless connection)