Audio-technica True Wireless IE Headphones grey - ATH-SPORT7TWGY

Audio-Technica ATH-SPORT7TW. Product type Headset. Wearing style In-ear. Recommended usage Sports. Connectivity technology Wireless. USB connector Micro-USB. Bluetooth profiles A2DP.AVRCP.HFP.HSP. Ear coupling Intraaural. Headphone frequency 20 - 25000 Hz. Impedance 14 ?. Microphone type Built-in. Microphone frequency 100 - 8000 Hz. Microphone sensitivity -42 dB. Battery type Built-in battery. Battery technology Lithium-Ion (Li-Ion). Continuous audio playback time 5 h