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

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