Title: Ms. versatile anti-wolf supplies / wireless pager elderly anti-lost Keychain Size： 5.5 * 3 * 1.5CM volume ≥90 dB Material： ABS + Electronic Components Colour： Pink blue random shipments Brief introduction： How to use: plug on the piece of string on the phone or other items, and the other end of the strap is fixed to the body or purse, when dropped or stolen items, plug prolapse, which issued a loud alarm sound. Button battery-powered, less wear and tear, responsive, easy to carry, compact, can be used repeatedly! As bags and other cell phone accessories very good, oh