Samsung BHF1000 - Manual (Page 27)

English
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Specifications
Item Specifications and description
Bluetooth version 2.1+EDR
Support profile Headset Profile, Hands-Free Profile
Operating range Up to 33 feet (10 metres)
Standby time Up to 900 hours*
Talk time Up to 15 hours*
Charging time Approximately 3 hours*
* Depending on the phone type and usage, the actual time may vary.