HK FLYER vs Callny Control

This is an app based on a mobile phone to control a mini airplane.

Based on GSM 3G 4G network, widely used] GSM 3G 4G access controller, It can be used to authorize access control, parking systems, household appliances, production automation, remote device switching, industrial remote control, etc. It can be operated anywhere without distance limitation. [Simple APP remote wireless control] The mobile APP is fully controlled, the interface is intuitive and easy to operate, and the function is more abundant. You only need to "shake" to open the door, and you can realize remote control without spending money [Intelligent ID recognition, hang up strange calls] Just dial the authorized user number, you can pass open or close the fence, door or machine. No Call charges, GSM 3G 4G access controller rejects calls from authorized numbers and then performs open/close operations. Up to 999 authorized phone numbers can be configured. [SMS smart alarm] When any user triggers the relay, a reminder text message will be sent to the designated number, the whole family will take care of it, and the alarm will be activated immediately; protect your assets through the GSM 3G 4G network.