Anti-satyr Security Alarms. With high brightness LED light. Stylish exterior design, full of modernity. Key ring can be easily hanging bags and other personal belongings. When in danger, the sound is loud and dramatic, deterring attackers. For students, the elderly, night runners, women often go the night. Specification Type: Anti-satyr alarm Volume: andge 130 (dB) Lighting function: Yes Product Weight: 0.03 kg Color:black or gold or sliver or blue or purple Specifications: Anti-satyr Security Alarms. With high brightness LED light. Stylish exterior design, full of modernity. Key ring can be easily hanging bags and other personal belongings. When in danger, the sound is loud and dramatic, deterring attackers. For students, the elderly, night runners, women often go the night. Package Included: 1 x Security Alarms 1 x key ring pendant 1 x bolt Notes: Due to the difference between different monitors, the pictures may not reflect the actual color of the item. Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement. Please leaving a message before you give the bad feedback, if the products have some problems. Thanks for your understandings.