Freedom and security – now you can go with confidence. Belle is a great option for the active senior that travels or is out and about daily. Belle works anywhere you go that has cellular coverage. This product requires that there be adequate AT&T 3G cellular coverage or 4G Verizon coverage to support it’s functionality. It’s shower-safe but should not be submerged in water. Your device’s rechargeable battery will last up to 30 days per charge. It is recommended that you place your device in the charging cradle near your bed each night so your device is always fully charged.