Sony DRBT100CX/BLU Ear Bud Style Stereo Bluetooth Headset (Discontinued by Manufacturer) Convenient standard USB charging (cable included) Receiver with built-in microphone for use with phone (Hands-Free) function Profiles: A2DP, AVRCP, HFP (1.0), HSP (Ver. 1.1) Volume adjustment Bluetooth Version 2.0