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

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