~~~Button Battery~~~ Flashing mode:Three simple button settings,slow flash, flash and continuous light. ~~~USB Charging~~~ Flashing mode:Long light,Flash, Slow flash, Close( via switch control ) Battery:2PCS CR2032 button battery -driven (60-80 hours, normal 2-3 months ; battery can be replaceable , convenience stores or supermarkets are available .) Package contains：1pcs LED Nylon Leash(Batteries not included)
availeble  in L,M&S red, L M&S yellow