Features • This is a high-pitched resonance alarm (security buzzer) that is very small but has a large volume (105dB/30cm). • Small and easy to hold, perfect for children and women. • When the pull cord is pulled strongly, a loud, high-pitched alarm will sound, intimidating and driving away attackers (※The pull cord does not detach. The alarm stops when the cord's metal fitting is pushed back in.) Product Specifications ■ Size: Width 30 x Height 51 x Depth 18mm ■ Body Weight: 18g • Material: ABS resin ■ Country of Origin: China ■ Sound Pressure Level: 105dB / 30cm ■ Power Supply: Button battery CR2032 x 1 ■ Included: Battery included