Garmin inReach Messenger Handheld Satellite Communicator Global Two-Way Messaging Kit Be Free Medium Shredding Disc

Medium Shredding Disc

Storage Temperature -4 to 131°F / -20 to 55°C

but that is Sony's baseline for G Master design

you can always have an optional back-up charged and ready to go

iOS Devices:

Garmin inReach Messenger Handheld Satellite Communicator Global Two-Way Messaging Kit Be Free Medium Shredding DiscIf youre venturing off the grid, this small, rugged satellite communicator goes beyond the limits of cellular networks to keep friends and family in reach with global two way text messaging. With the inReach Messenger satellite communicator, home is closer than you think (Active satellite subscription required. Some jurisdictions regulate or prohibit the use of satellite communication devices). Providing global two way messaging and interactive SOS,