Esperanza EH231K headphones/headset Wireless In-ear Calls/Music Micro-USB Bluetooth Black

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