I love my tech wearables, and this one is a must for solo women travelers. The InvisaWear necklace features a discreet charm that sends an emergency signal including your location to authorities or emergency contact when double pressed. Its chic design incorporates seamlessly into my style so I wear it everywhere. It’s powered by ADP who has a longstanding reputation in security. It gives me extra peace of mind when I’m traveling or even just running around my city.