Unit19
作者：Nordean Saowijit
1. Connections
1.1. 4G
1.1.1. Bluetooth Handsfree
2. Cost
2.1. Data cost
2.2. App cost
3. Phone
3.1. 4G Coveage
3.1.1. Battery Life
3.1.1.1. App Compatibility
4. Laws
4.1. Driving Laws
4.1.1. Data protection act
4.1.1.1. Health and Safety