Aftershokz OpenMove. Product type: Headphones, Wearing style: Ear-hook, Recommended usage: Calls/Music. Connectivity technology: Wired & Wireless, USB connector: USB Type-C, Bluetooth profiles: A2DP,AVRCP,HFP,HSP. Ear coupling: Bone ?onduction, Headphone frequency: 20 - 20000 Hz, Headphone sensitivity: 96 dB. Microphone type: Built-in, Microphone sensitivity: -40 dB. Battery type: Built-in battery, Battery technology: Lithium Polymer (LiPo), Battery life (max): 6 h