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

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