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Bluetooth Version 4.1; profiles include Advanced Audio Distribution (A2DP), Hands-free (HFP), Headset (HSP)
Talk time:Up to 7 hours
Standby time:Up to 11 days
DeepSleep:Extends battery readiness up to 180 days
Type of battery: rechargeable, non-replaceable lithium battery
NOTE:you can let the headset connect with two bluetooth device at the same time and answer the phone of any one device.
1*USB charging cable