VSETT series support NFC (Near Field Communication). That means you can turn on the scooter by your phone, but you need to make sure your phone have NFC function and support to control scooter. Maybe some phones have NFC function but can't control scooter such as iphone 11.
Specification:
Support Voltage Level: 24V/36V/48V/52V/60V.
Plug: 6 pins model.
For scooter: VSETT 8/8+/9/9+/10+/11+(60V model), ZERO 8/9/10/8X/10X/Z8PRO, GRACE 8/9/10, SPEEDUAL/MINI.
Not support: ZERO 11X/SPEEDUAL PLUS.