BOAS LC-888 Mini Stereo Wireless Bluetooth Headphone Handsfree Headset with Mic Bluetooth 4.1+ERD Earphone In-Ear Voice Prompt Number Reporting with Earhook Type: In-Ear Charge Time: 2.5 hours Bluetooth Version: 4.1 Bluetooth Profile: Support A2DP1.2, AVRCP1.0, HFP1.5, HSP1.0 Battery: Rechargeable Li-po battery |