I don't know what thickness they charge but the sirens are pretty loud and easy to use. The sound is not very loud, there is no volume control at all.
USB Rechargeable Waterproof 130 DB Security Panic Button Siren Whistle With LED Light Self Defense Personal Alarm Keychain For Women Safety Sound Alert Device Key Chain By WETEN (White)
16 Review
WETEN Safety Siren: Personal Protection For Women - 2 Pack Self Defense W/ Flashlight & 130DB Loud Alarm
29 Review
Rechargeable 130 DB Emergency Personal Alarm Keychain With LED Light - SOS Safety Alert Device For Women, Kids, Elderly & Joggers By WETEN (Blue)
20 Review
Self Defense Personal Alarm Keychain For Women β USB Rechargeable Waterproof 130 DB Security Panic Button Siren Whistle With LED Light β Safety Sound Alert Device Key Chain By WETEN (Blue)
20 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
Effortlessly Navigate Your Laptop Or Desktop With The Perixx PERIPAD-501 Wired USB Touchpad
27 Review
Fitbit Versa 3 Smartwatch Replacement Band: TOYOUTHS Elastic Nylon Fabric Strap For Women & Men
50 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