... Audio device can play Audio that the Bluetooth headset Text to speech ·The speaker and other Audio device can play Audio that the Bluetooth headset·Text ... sound with DSP·Support A2DP,AVRCP,headset,handfree profile ·Redial the last call ,Reject call.Volume adjustable. ·Faster connecting, ... LED and Audio Indication·Working Range: Up to 10 meters·Bluetooth Version: V2.1+EDR ·Maximum Working Time: 30 Hours ...