Specification:
<br />Bluetooth Version: V4.0
<br />Bluetooth Profiles: A2DP,AVRCP,HSP,HFP 
<br />Bluetooth Transmission Frequency: 2.4GHz 2.48GHz 
<br />Operating Range: Up to 10m (free space) 
<br />Frequency Response: 20Hz-20kHz
<br />Talk Time: Up to 20 hours 
<br />Bluetooth Music Time: Up to 12 hours 
<br />Standby Time: Up to 160 hours 
<br />Charging Time: 2 hours 
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<br />Seller Warranty Description
<br />1 year warranty from the date of purchase
<br />-5ND8V