Samsung HM3100 Mode D'emploi page 27

Specifications
Item
Bluetooth version
Support profile
Operating range
Standby time
Talk time
Charging time
 Depending on the phone type and usage, the actual time may vary.
Specifications and description
2.1+EDR
Headset Profile, Hands-Free Profile
Up to 33 feet (10 metres)
Up to 180 hours
Up to 4.5 hours
Approximately 2 hours
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