Through Authenticate 
Features
Size: 5" / 5.5" / 6" / 7" / 9"
Super black background color
High contrast (1000:1)
Viewing angle: 3 o'clock / 6 o'clock / 9 o'clock / 12 o'clock
Can be matched with multi-color backlight (such as: white, blue, yellow, etc...)
Can be used with other processes to display multi-color silk screen printing
USB charging: optional 5V/1A; 5V/2A (Compliant with BC1.2 USB battery charging protocol)
Heart rate detection supports hand pulse, 5K wireless and Bluetooth heart rate
It can be connected to the Bluetooth module which will link to the mobile phone/tablet APP (KINOMAP, ZWFIT... etc.) and connect to the Bluetooth heart rate chest strap
Support 3W speaker*2, 3.5' earphone, 3.5' audio input, Bluetooth music
Exercise programs: Manual, Hill, Goal, Race, Interval, user programs, Heart rate programs.
Display data: Time / Distance / RPM (SPM) / Heart rate / Calories / Watt / Speed / Ascension
