About this item APP VERSION - ZAP electronic pulse, NEVER NAP, WAKE UP INSTANTLY! Can set 5 different time, At set time, safe pulse current is released immediately, so that the wearer wakes up immediately, NO MORE SNOOZE. No, they don’t hurt but they definitely work! DEVELOP GOOD HABIT - With timed electric shocks, the brain generates aversion and remembers, and finally a conditioned reflex is formed, and you will automatically wake up whenever the set time is reached. SILENT ALARM will not affect others. STUDY / DRIVING SLEEPY - Auto ZAP mode can repeatedly electric shock at a certain rate within a certain time range, so that the wearer can stay awake at all times, avoiding inefficiency and even endangering the lives of themselves and others. Best travel alarm clock! EASY TO USE - Smart watch is equipped with Bluetooth and APP, allowing you to set the alarm time, ZAP Strength, ZAP rate, etc in the APP. The watch can turn off the alarm/auto ZAP with one key(Watch switches to the alarm interface. Long press the selection key to turn off the alarm), which is super convenient to use. Our APP currently does not support for Samsung phones. Aviation aluminum alloy body; 1.3-inch TFT digital color display watch, high value for everyone's aesthetics; Built-in 180mAh rechargeable lithium battery, which can be fully charged via USB magnetic charging ..... User Manual Download Link: qrco.de/bcqO9d Q&A Link: qrco.de/bcttRo