GRUNDIG Reflector Findmy Tracker，Bicycle Tail Light - For IPhone Users

*Only for IOS Compatible with 0.5L to 0.6L bottles Invisible Guardian: Hard to Find, Easy to Trust! Rounded corner design: protect the water bottle from scratches Sturdy and Durable: high-strength and aging-resistant material IP65 waterproof and dustproof Long battery life: a 210mAh lithium battery Concealed Design Not easy to be discovered. GRUNDIG trackers are perfectly hidden in the bike bell, bottle holder and reflector.Long Battery Life GRUNDIG Trackers can last for half a year and can be replaced with simple operation. IP65 Waterproof and Dustproof. Meet the needs of daily use, you don't have to worry about getting wet by rain or splashing water. Versatility Can be used to track bicycles, wallets, keys, luggage, and prevent pets from getting lost, etc.