To learn how to use it, you need the instructions that come with the products. There's a big round thing that I thought was a button, but it's not. You must pull this black wire to disable the alarm. It's shockingly loud and I couldn't plug the cord back in quickly enough for comfort. I think this alarm will also shock every attacker's ear and make him work! I have no doubt.
WETEN USB Rechargeable Self Defense Keychain Alarm For Women - Waterproof 130 DB Security Panic Button Siren Whistle With LED Light - Safety Sound Alert Device Key Chain In Black
14 Review
WETEN Safety Siren: Personal Protection For Women - 2 Pack Self Defense W/ Flashlight & 130DB Loud Alarm
29 Review
2 Pack 130 DB Rechargeable Self Defense Keychain Alarm - Emergency Personal Siren With LED Light For Women, Kids, Elderly & Joggers By WETEN (Black&White)
12 Review
Rechargeable Personal Safety Alarm Keychain With Low Battery Notice And Strobe Light - Extra Loud Double Speakers - Pearly White (Vantamo)
14 Review
Dingsun SVideo To HDMI Converter: 3RCA AV Support 1080P/720P Compatible With WII U, PS2/PS3, STB, Xbox & More!
43 Review
12 Months Warranty HP ProBook 440 G2 450 G2 TPN Q139-Q143 Battery Replacement - VI04 756743-001, 756745-001, 756479-421 HSTNN-DB6K HSTNN-LB6K
38 Review
2 Pack Battery And Charger Kit Bundle For Olympus Tough TG-Tracker, TG-5, TG-2IHS, TG-3, TG-4 Waterproof Digital Camera Includes 2 Replacement (1500Mah) LI-90B, LI-92B Batteries + Charger + More
43 Review
HUANUO Adjustable Laptop Stand Riser For Desk - Fits Up To 15.6 Inch Notebook, Mesh Ventilated Cooling With 8 Tilt Levels For Improved Airflow & Ergonomics
29 Review