iSwimband Personal Drowning Detection System for iOS (Sunfish Yellow) iSwimband is the world's first wearable sensor that notifies you immediately via your smart device if a swimmerhas been submerged dangerouslylong or if your non-swimmer unknowingly enters the water Worn as a comfortable tamper-resistant wristband, you'll be alerted immediately should the child enter the water Worn as a lightweight headband or goggle strap, be alerted immediately should your swimmer remain submerged for a preset period of time When using the system, there's no need tofocus on your phone or tablet: Loud audible alertsnotify you of anyevent. Includes: One iSwimband headband/goggle strap One iSwimband wristband One iSwimband sensor Features: One-time setup Works with goggles and swim caps Monitors up to 8 iSwimbands per iOS device Expandable using Wi-Fi or Bluetooth Range up to 100 foot/ 33 meters (will depend on environmental conditions) Includes free companion app via Apple'sApp Store Developed with the guidance of leading aquatic safety experts