1. Communication: interphone, Bluetooth earphone & speaker.
2. Office devices: notebook, PDA, portable electrograph, portable printer.
3. Video/audio devices: GPS, digital camera, camcorder, portable DVD, MP3, MP4.
4. Portable exchange devices: POS, fingerprint machine, portable stockmachine.
5. Illuminate devices: miner lamp, searchlight.
6. Others: toys, smart watches, gamepads, etc.