Power supply: DC 3.7V Battery: Lithium Battery 4000mAh Product size: 260*230*50mm Maximum current: <10 uA Screen: colorful screen We have : English, Spanish, French, Italian, Dutch, Polish, Swedish, German, Korean, Portuguese, Thai, Hebrew, Russian, Mandarin, Portuguese(In Europe verson) Please leave us a message about what langua do you want. Package includes: AED trainer x 1pc Plug-in card x 1pc Remote control x 1pc Wire connectors x 1pc Adult electrode pads x 1pair Child electrode pads x 1pair Adapter x 1pc Manual x 1pc (English) Portable nylon bag x 1pc