Esperanza EH228K headphones/headset Wireless In-ear Calls/Music Micro-USB Bluetooth Black

Wearing style: In-ear | Battery type: Built-in battery | Control type: Buttons | Headphone frequency: 20 - 20000 Hz | Frequency band: 2.402-2.480 GHz | Ear coupling: Intraaural | Bluetooth profiles: HSP | Bluetooth profiles: AVRCP | Battery technology: Lithium Polymer (LiPo) | Battery voltage: 5 V | Recommended usage: Calls/Music | Intraaural headphones type: Earbuds | Bluetooth version: 5.0 | USB connector: Micro-USB | Bluetooth: Yes | Bluetooth profiles: A2DP | Bluetooth profiles: HFP | Product type: Headphones | Battery capacity: 40 mAh | Talk time: 4 h | Battery recharge time: 1 h | Microphone type: Built-in | Battery capacity (charging case): 300 mAh | Product colour: Black | Base station colour: Black | Connectivity technology: Wireless