I am a professional audio engineer and have measured this using calibrated equipment and standard methods. While build quality appears acceptable, the power output of my particular device falls far short of what is advertised. Based on my results, you'd be lucky to get 90dB outdoors at 10 feet, which takes quite a bit of effort to get going. Not as loud as a car horn.
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 130 DB Emergency Personal Alarm Keychain With LED Light - SOS Safety Alert Device For Women, Kids, Elderly & Joggers By WETEN (Blue)
20 Review
WETEN Safety Siren: Personal Protection For Women - 2 Pack Self Defense W/ Flashlight & 130DB Loud Alarm
29 Review
π Vantamo Personal Alarm for Women: Extra Loud Double Speakers with Strobe Light & Low Battery Notice - Rechargeable Safety Alarm Keychain in Deep Lavender
17 Review
π TalentCell PB240A1 | 24V Lithium Ion Battery with 22400mAh Capacity | Rechargeable Power Pack for LED Light Strip, CCTV Camera, Smartphone & More
26 Review
Enhance Your Network Connection With Dingsun RJ45 Coupler - Compatible With Cat5, Cat5E, Cat6, And Cat7 Ethernet Cables (Black 10 Pcs)
35 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