Esperanza TWS CARDERA Headphones Wireless In-ear Calls/Music Bluetooth Black

Microphone in: Yes | Intraaural headphones type: Earbuds | Backlight colour: Red | Charging source: Battery | Control type: Buttons | Battery technology: Lithium Polymer (LiPo) | Headphone frequency: 20 - 20000 Hz | Wearing style: In-ear | Connectivity technology: Wireless | Product colour: Black | Bluetooth: Yes | Battery capacity: 30 mAh | Ear coupling: Intraaural | Backlight: Yes | Bluetooth profiles: HSP | Bluetooth version: 5.0 | Base station colour: Black | Wireless range: 10 m | Recommended usage: Calls/Music | Fast charging time: 60 min | Product type: Headphones | Talk time: 4 h | Bluetooth profiles: AVRCP | Bluetooth profiles: HFP | Battery type: Built-in battery | Bluetooth profiles: A2DP | Input voltage (earpieces): 5 V | Base station USB connector: USB Type-C | Battery technology (charging case): Lithium Polymer (LiPo) | Battery capacity (charging case): 300 mAh