Product Name: LED FrisbeeProduct Diameter: 24cmProduct desciption:1、 the design、 the concept of humanity as to the source of all: safe、 stylish、 thoughtful、 lively、 beautiful、 equality2、 super bright LED light + green PU material Frisbee3、 to ensure the best quality: each process through the most rigorous testing、 resistance to oxidation and corrosion testing.4、 attention to detail: every details of the deal to go through rigorous testing.Color: color randomUsage: Turn the switch to light upSource Description: LED lights glow、 the light guide through PVC、 bring the whole plate light. This product is export quality、 through CE、 ROHS、 EN471 environmental certification、 effective rain water、 cleaning when disassembling the switch box to remove the battery.Suitable for dark environment or night activities、 outdoor sports、 through super-bright LED light、 showing fashion sports personality、 fashion design suitable for day or night use.Battery: The product itself comes with two original button batteries (for the original CR2016)、 long light emission time of the measured data for sustainable 40 hours; battery can be replaceable、 convenience stores or supermarkets are sold.common problem1: the battery is interchangeable? Answer:2: The flash mode is what? A: flash、 slow flash、 long bright close. Fourth gear3: probably how long? A: 40 hours or so.4: emission band can be washed it? A: When cleaning Removing the switch box to remove the battery、 the other does not move.5: Battery Where can I buy? A: Watch Shop electronics store supermarket can easily buy.