International version is different from following perspectives:
1. Our international version supports 13 country languages.
2. The software is dedicatedly designed and customized for global users, it supports many types of APK including Youtube, Facebook, Hulu, etc.
3. JMGO's projectors are with universal input voltage (100V-240V), you can use it anywhere without a transformer.

No, you don't need to buy a screen. You can directly project it to a white plain wall. The format of our screen is 16:9 which is the golden standard in the industry, so we also recommend a screen for a better watching experience.

Yes, you can adjust the size of image as following instruction:
1. Setting → Image → turn off the "Auto Keystone Correction" → adjust "manual" by "-" or "+" of JMGO remote control.

For JMGO N7, There are 2 methods for you:
1. Setting → Image → turn off the "Auto Keystone Correction" → adjust "manual" by "-" or "+" of JMGO remote control.
2. Press the "JMGO" key and shift to choose "Digital Zoom" to shift the size of your screen.

The lifespan for our LED source is about 30000 hours, you can use it about 10 years with 8 hours per day.