Samsung HM6400 - Manual (Page 37)

English
35
Specifications
Item Specifications and description
Bluetooth version 2.1 + EDR
Support profile Headset Profile, Hands-Free Profile
Advanced Audio Distribution Profile
Operating range Up to 33 feet (10 metres)
Standby time Up to 180 hours*
Talk time Up to 6 hours*
Play time Up to 5 hours*
Charging time Approximately 2 hours*
* Depending on the phone type and usage, the actual time may vary.