iAlert for runners at night. 3 choice of images to blink at different shrinking and speed.
Improves safety at night strolling, runs or cycling purpose. Allow road user to be aware of your existence especially at dark spot.
Suggested to be use with armband.
Suitable to use for other purpose such as concerts or performance.
Caution : May drain more battery due to brightness for alert blinking function.
Safety comes first.